Start something new. 

I'd 've never experienced a new year like a new life till up to  now. (Check out the difference between present perfect and past perfect and their respective usage.)  This new year is like a new chapter, totally empty. As I graduated last year, I'm not studying right now. I'll start an English course next Monday at UIS, best university in Santander, and also where I'll attend (or start the) next semester.   For the first time I had to have to go to University  (either UIS or simply university with a small u as the first letter.) by bus; I have to do everything by myself. My parents used to do everything for me, but now I'm older and it's time to grown grow up. I'm learning to drive as well, even though I thought it'd never be possible I'm doing it. (Comment: You cannot say you are driving because technically you are learning to drive.) I have to confess I'm afraid because I don't want to make mistakes, specially when I have all the responsability (misspelling); that's the hardest thing about grown growing up and become becoming and a young adult; somehow I was sure this time would come someday and I'd have to face it bravely and smartly. I really hope this year brings new experiences, specially those that help me to grown grow up and be better.

Please provide me your corrections. I haven't practiced any English at all lately, but I'll carry on my practice.
Thank you in advance! :)

You have a solid foundation in writing.;-)  May the new year bring you all the new joyful experiences wherever you happen to be. 

Start something new.

I'd never experienced a new year like a new life till now. This new year is like a new chapter totally empty. As I graduated last year, I'm not studying right now. I'll start an English course next Monday at UIS, best university in Santander, and also where I'll attend next semester. For the first time I have to go to University by bus; I have to do everything by myself. My parents used to do everything for me, but now I'm older and it's time to grown up. I'm learning to drive as well, even though I thought it'd never be possible I'm doing it. I have to confess I'm afraid because I don't want to make mistakes, especially when I have all the responsability; that's the hardest thing about being a grown up/growing up and becoming and young adult; somehow I was sure this time would come someday and I'd have to face it bravely and smartly. I really hope this year brings new experiences, especially those that help me to grown up and be better.

Please provide me with your corrections. I haven't practiced any English at all lately, but I'll carry on my practice.
Thank you in advance! :)

This was really really good. Good luck at University. I'm sure you'll do well!