It was careless..

I'll try to practice it slowly and make sure every note is right!
I rush when I want to get a passage over with because I'm not as good at that part.
Thanks for giving me luck!
I'll post an update every month so that You and I can both see my progress.
Edit: And I chose this piece because of the first few measures in the piece. I was like 'I'm going to play this, it looks soo easy!'.. whilst all the other pieces had 100% complicated notes. This is actually my first piece I'm playing in the Chopin Etudes! When I sightread No 12 (Both Op 10 and 25), it was actually easy! (Not literally, but considerably easier than Op 25 No 11).