Hi! I'm new here and I'm not playing very long. Now I'm working on first movement of Mozart's 1st sonata KV 279 in C major. Everything is very nice and easy, but i have problem with trills.

I don't know what to do, becouse i don't tense or anything like that, but the sound is just very muddy, sometimes I even hit 2 notes at the same time.

And, of course i can't play any longer trill. It's interesting, cos' i don't have this problem with my left hand, only with right. And right is my "better" hand.
If You could give me any advice, please, I would be very graceful.