Wow, guys thank you very much for your help, I guess im still very insecure about my english, I know I make loads of mistakes so I feel ashamed with the fact I studied for so many years and I still don't know or I still get confused with some structures and even basic things like prepositions.
But after all these answers I feel much more confident to go ahead, because there will be always something new to learn, life is always a surprise isn't it?
and guess what I wrote this paragraph in 5 minutes, something that before I would take around 30 minutes checking out words on the dictionary.
So im proud of myself but not satisfied, something I think its good, it encourages me to go ahead.
Thanks a lot