I am  back to study

(when you use "i", you need to make it capital "I" when the I stands alone.) also the word english should be capital "E"nglish

Keep making mistakes :)  that's how you learn ! 

im came back to study

I have come back to study.

I'm getting ready to take a few months to study English. I never started it prior to today, but today I will do it.

That's my first day with that method, like a diary, that is, to write my day in the past to memorize the irregular verbs.

This is my first day with this method, like a diary, that is, to write my day in the past to help me memorize irregular verbs.

Well... Today i woke up at 9 a.m and i was very sleep, cause yesterday i maked pizza with my university friends, and i sleeped really late...

Well, today I woke up at 9 a.m and I was very sleepy, because yesterday I made pizza with my university friends, and i slept really late.

And after i readed a text to the class about "the true" and your concepts, and near of the 3 p.m. i started to study guitar to my band, somes new music to play until 5 p.m, after that hour, i went to the university, and i came back more early to home...

After I read a text for my (English, philosophy, ???) class about "the truth" and its concepts, about 3 p.m. I started to play guitar with my band, and we played some new music until 5 p.m. After that, I went to the university, and I came back home earlier than usual.

that is my routine... 

That is my routine.

Note: I read today /ai rid tu'dei/ BUT I read yesterday /ai red 'yesterdei/

Bom trabalho, Victor!