Mine sat for a long time, too.
One thing that really helped me was a video I happened upon. This quilt instructor came right out and said (paraphrase), 'Look, you're going to do some ugly quilting when you start out. You have to give yourself permission to ruin some quilts.'
So I started out with quilts that meant less to me, gave myself permission to ruin them, and it got me out of my paralysis. And they weren't ruined -- once you wash the quilt, you can't really tell how expertise the stitching is. It's funny, that while I'm picky about my piecing, I'm super casual about my quilting. Maybe as I get better, I'll get fussier about that, too.
(And don't waste any energy being angry with yourself!)