But it wasn't a real choice because the school hadidn't have any English teacher, so they recommended to everyone to choose German because it's really worthywhile in our region.

They thought that' was enough to us to commit ourselves to learn German.

"that's" = "that is"

So I had to learn German for 8 years there, doing my homework and prepareing for tests.

Past tense since this happened in the past

My family thought about me that I haved no sense ofkill for languages and I believed this thingem.

"thought about me that I"

"that I" already implies the "about me" so better to remove it.

I knew German iwas absolutely not an option, so I chose English because I already had a pretty good vocabulary and a few months to prepare.

After thenat I stopped working on my English knowledge, but I realized I have to work on it, so I started again with a new goal.

You need a verb after "I have to" here.

I want to be fluent and take a C2 exam within 2 years from now.

"within" and "from now" are redundant, so you would only use one.

"2 years from now" = "you want to take an exam in 2 years"
"within 2 years" = "you want to take an exam at some point in the next 2 years"

I picked "within" as the broader option.

I hated languages and believed I caouldn't learn any of them because I have no sense of language skills, but ithat wasn't right.

"couldn't" is past tense of "can't". Since you longer believe it and you're talking about your past experience, better to use past tense.

Of course it's not easy, but I don't think we don't learn languages because it's easy, right?

Knowing a language opens up the world for us and make us capable to get to know another culture and many new people.

But it wasn't a real choice because the school hadn't have any English teacher, so they recommended to everyone to choose German because it's really worthy something/it in our region.

My family thought about me that I haved no sense of language, and I believed this thingem.

I knew German is absolutely not an option, so I chose English because I already had a pretty good vocabulary and a few months to prepare.

"Few" would indicate that the number of months was small.
"A few" would indicate that there were several months.

After thenat, I stopped working on my English knowledge, but I realized I haved to, so I started again with a new goal.

I hated languages and believed I caouldn't learn any of them because I thought I haved no sense of language, but itI wasn't right wrong.

By adding the "thought" again after "believed" earlier in the sentence it reinforces the idea that this was only your belief, not the reality. Without it, I almost forgot that it was just your opinion.

Now I think anyone can learn any language if they really want to.

🤷‍♂️

Of course it's not easy, but I think we don't learn languages because it's easy, right?

"I think" is unnecessary because you are making a truth claim.

Knowing a language opens up the world for us and makes us capable tof getting to know another culture and many new people.

I learnstudied German for over 10 years, but I can't even write a linsentence about my name anymore.

I suggest to add "anymore," as a precision that, of course, during the 10 years of active study, you were able to write a basic sentence, but it has been so long that you don't even remember that -anymore-.

However, I never learned English properly — /formally—and now I'm writing stuff like this.

This is just a personal opinion, but em dashes (—) are virtually never used by English natives, this does not even exist on our keyboards. It's usually a sign that a text came directly from an AI like ChatGPT. But it is not grammatically incorrect to use. However, if you wanted to sound natural, using a regular dash (-) is advised.

When you say you never learned English properly, it implies you learned English, but poorly/incorrectly. From the rest of your text, it sounds like you might mean that you never had English classes. If what you mean is the latter, use "formally."

I think it's funny, so I decided to share this littleshort but true story.

In elementary school, we had to choose: English or German.

But it wasn't a real choice because the school hadidn't have any English teachers, so they recommended tohat everyone to choose German because it's really worthyhighly valued in our region.

They thought that' was enough tofor us to commit ourselves to learning German.

We had a teacher who did her jobtaught as if she had gotten her degree from her neighbor, so she couldn't even teach anything to herself, let alone to anyone else.

Better to use "taught" than "did her job" to be clear

After so many tears, we finished elementary school and I went tostarted high school, where they said, "If you learned German in the elementary school, you have to stick to it here too."

In the first 3 years, I had a really bad teacher, but then we got a new one, who finally had the abilities and skills to teach German, s. So after another 2 years, we finished high school and I was finally done with the German language.

My family thought about me that I haved no sense of language skills, and I believed ithis thing.

"About me" is redundant and unnecessary here.
I'm not 100% sure if I understood your meaning, but if you mean to say your family thought your language-learning skills were poor, this is how I edited it.

A few years ago, I decided to go to university, soand I had to take a B2 -level exam in any language.

I knew German iwas absolutely not an option, so I chose English because I already had a pretty good vocabulary and few months to prepare.

The exam wasn't easy, but due to the COVID, there wasn't no oral exam.

After thenat, I stopped working on my English knowledge, but then I realized I have to continue, so I started again with a new goal.

This is fine, but it leaves your readers wondering why you "have to" keep studying English. Is it because school or work requires it of you? If it just your own personal requirement, change this to "I realized I need to"

I want to be fluent and take a C2 exam within 2 years (from now).

You could leave off the end here and still be understood

Yeah, that's my long language -learning journey.

I hated languages learning and believed I caouldn't learn any of them because I haved no sense of languagekill for it, but ithat wasn't right/true.

"True" fits here better because you could describe this as factual: you DID have the skills to learn another language (English). Right and wrong are often used in contexts where facts cannot be used to make the call. (He wasn't the right man for her. She said I spilled the soup, but that's not true).

Now I think anyone can learn any language if they really want to.

Of course, it's not easy, but I think we don't learn languages because it's easy, right?

"I think" is unnecessary here and sounds unnatural in this placement

Knowing another language opens up the world for us and make us capable to get to know another culture and many new people.