Today I waoke up early, around 7am.

The word wake is present tense but woke is past tense. Since this happened in the past it would be woke

Immediately, I went down trough the stairs and I saw my mom preparing my breakfast.

No need to say through. You can also say “I went downstairs” if you want

I didn't believe it, but I felt thankfully with for her.

There is always a comma before words like “but.”

If you want to show thanks to a specific person, it is “thankful for.”

At noon, my childrens, my wife, my dad and I went out to the park.

Children is already plural so you don’t need an s

On the way, Wwe decided to buy roasted chicken, because I was very hungry.

No need to capitalize “we.” In English, we only capitalize the first word of a sentence and proper nouns. Proper nouns would include names of people, titles of movies/shows/books/songs, city names, country names, and job titles. Basically everything else is all lowercase.

Before to playing in the park, Wwe ate the chicken.

“To play” needs to be conjugated

It was very tasty, m. My childrens were very happy for eating the chicken.

This should be two sentences since they are two independent complete thoughts.

The lunch was tasty too, however, I was not hungery.

The word “however” is almost always going to have commas on both sides of it.

The word hunger is a noun. So you have hunger or don’t have hunger. But hungry is an adjective that describes a state of being. So you are hungry or are not hungry.

At 7pm, I went back to home, and after Wwe got a dinner.

That’s all for my happyness day :)

“That’s” needs an apostrophe.

Happiness is a state of being for a person. So you can experience happiness but the day can’t. Days are described simply as happy.

My jJournal

Every important word in a title has a capital letter.

Today I waoke up early, around 7am.

"woke up" - past tense.

Immediately I went down trough the stairs and I saw my mom preparing my breakfast.

I didn't believe it but I felt thankfully with to her.

At noon, my childrens, my wife, my dad and I went out to the park.

Plural of 'child' is 'children' not 'childrens'.

On the way, W we decided to buy roasted chicken, because I was very hungry.

'We' isn't a new sentence so does not start with a capital letter.

Before to playing in the park, W we ate the chicken.

Form of verb here is 'playing' not 'to play'.

It was very tasty,; my childrens were very happy for eating the chicken.

No 'for' here. Two related sentences like this are joined with a semi-colon ; not a comma ,

When we got home, we had to get lunch again.

Don't think you need the 'again'.

The lunch was tasty too,; however, I was not hungery.

In English it is always 'to be hungry' never 'to have hunger' or 'to be hunger'.

After, arboundt 4pm my dad and I went to the ecuavolley, and we both watched 2two matches.

At 7pm I back to home and after Wwards we got a dinner.

No 'a' here.

That's all for my happyness day :)

"That's" in this case is short for "That is". 'happy' or 'happiest' make sense in sentence but not "happyness". (Also it is spelled "happiness".)

My jJournal

Today I waoke up early, around 7am.

Immediately I went down trough the stairs, and I saw my mom preparing my breakfast.

I didn't believe but I felt thankfully with for her.

I'm not sure what the first part means: what didn't you believe? That she was there?

At noon, my childrens, my wife, my dad, and I went out to the park.

On the way, Wwe decided to buy roasted chicken, because I was very hungry.

Before to playing in the park, Wwe ate the chicken.

It was very tasty, m. My childrens were very happy forbecause they ate eating the chicken.

When we got home, we had to get lunch again.

The lunch was tasty too, however I was no hungery.

After, around 4pm my dad and I went to the ecuavolley and both watched 2 matches.

At 7pm I went back to home and after Wthen we got a dinner.

That's all for my happyness day :)