Thanks, Sara. You sound very confident when you speak - great! Just a couple of comments:
"I don't know what IT could possibly happen..." - there is no need to insert 'IT' here.
"I could LIVE an exciting experience..." - some L1 influence here. Check the collocations dictionary to find out which verbs can go with 'EXPERIENCE': http://www.freecollocation.com/search?word=experience
In your sentence, I would translate 'VIVERE' as 'GO THROUGH'...or even as 'EXPERIENCE' (verb) but then you would have to change 'experience' (noun)
Maybe, "I could experience something new and exciting". What do you think?