I argee with chopinfan_22.
Its good overall.
I would bring out a little more from the melody from the beginning chords (the top note) Its doesnt sound bad though. Also in bars 23-24 and 27-28 I would do the same (the sixths)
The scales need some work but you got the idea right.
Then its like chopinfan_22 said , about the trills and the "con forza" parts.
I know its hard to play on a keyboard

Its hard to explain on the internet , try to get a friend who plays to give comments.
true, i was very confused when i heard other people play different versions with different trills and harmonies 
which one is the "real" version, does anybody know?
I think unless you've actually heard Chopin himself play it you cant decide which one is real or not. Perhaps Chopin himself played it differently from time to time.
Its your piece when you play it, so I would stick to the score and only add my own touch to it

Good luck!