Hi Eduardo.  You did a great job.  I would mention just a few things because they sound better when you speak in English.  First:  I need help to know how good I am at learning English.  (just separate the contraction)  Second: I try to do better day by day.  (instead of "to") and Third the very last sentence should be: they are too busy.

Personal Pronouns - Corrections

Hey there! I'm Eduardo. I need help to know how good I'm at learning English. I am happy to learn English. I want to learn more because I can study better at my university. I am dedicated. If I want to reach my goals, I try to do better day to day. What do you think about it? Am I doing well? Thanks for your help!

(I'm Only practicing the verbal conjugation)

I am handsome
You are handsome
He is handsome
We are handsome
They are handsome

I am pretty
You are pretty
He is pretty
We are pretty
They are pretty

I am ill
Are you ill?
He is ill
She is ill
We aren't ill
They are ill

I am very tired
Are you tired?
He is tired
She is tired
We are tired
They are tired

I'm angry, She has been treating me badly
Are you angry? Calm down
He is angry
She is angry
We are angry
They are angry
It is angry

I am busy
Are you busy?
He is busy, He is an important architect
She is busy
We are busy
They are busy with the homework
It is busy

I reach my goal
Your reach your goal

Can you help me? I can help you
Can you help her? I can help her
Can you help him? I can help him
Give it a kiss
Don't give it a hug
Give them their book
Can you help us? We can't understand our homework
I'll see you. See you later!
You can't help them, they are too business