My brain works under pressure, and for me, that was the "motivation" that I needed to learnt languages. My brain works under pressure, and for me, that was the "motivation" that I needed to learn languages.

In high school I had fFrench and eEnglish, and both of them were awfull, I hated ithem so much, f. For me, they weren't the worst subjects, and I wasn't really good at ithem. In high school I had French and English and both of them were awful, I hated them so much. For me, they were the worst subjects, and I wasn't really good at them.

However, when I was in collegue I understoolearned the importance tof speaking other languages. However, when I was in college I learned the importance of speaking other languages.

"understood" is a little unnatural in this context, implying that you understood then but not now. "realized," "finally understood," or the more neutral "learned" would be better when describing a long-term, persistent state change.

The oOpportunities are limitless when you are able to speak another language, especially eEnglish. Opportunities are limitless when you are able to speak another language, especially English.

Then french (because I did my master in france),I went to France to do my master, and at first iI thought that my fFrench was perfect, but no, I couldn't even understand fFrench native speakers ! I went to France to do my master, and at first I thought my French was perfect, but no, I couldn't even understand French native speakers!

Aside from spelling & punctuation, these are just suggestions to make the sentence flow a bit more naturally.

aAfter four years of effort I'm able to, and right do it, and now iI think I'm into languages. I really like them. After four years of effort I'm able to do it, and now I think I'm into languages. I really like them.