I told this to a student yesterday who is kinda stuck as well, I remember when I was doing this BR building challenge for GS and I won like 12 buyins in the first 3k hands at 10nl FR and then went on like a 6-8 buy-in downswing over the next 3k. Poker is brutal like that, it's amazing how much worse you play when you're running even slightly poorly.

Try to re-gain a positive attitude and expect good things to happen to you when you're playing.