I'm in the same boat (Ii believe it's bigger than we realized)! I love the whole process until it comes to sandwiching and quilting. I know it's because my FMQ skills are poor, but I'm trying to improve. Right now I'm in the process of unquilting a throw I've been making for my MIL. I was more than half-way finished with the quilting when I decided it wasn't up to my standard, partly because the top was developing puckers. So I'm starting all over with the quilting. I had already shown it to her at Christmas and the whole family knows about it so I HAVE to get it done ASAP. Meanwhile, I've started a Valentine's Day wall hanging and am anxious to start a scrappy to keep.
That being said, I am in possession of three quilt tops my MIL gave me that were made in probably the thirties or forties, which she was given a long time ago. I don't know who made them or the stories, but they are mine now. One is a waste, though, because it's gotten mildew on it which won't wash out. The other two are in great shape and I feel obligated to finish them. I'm thinking I'll just practice FMQ on them.
Just yesterday I bought a new quilting book that I think has some really great info. It's called Machine Quilting: Basics and Beyond by Lynn Witzenburg. She does start with basics and has some good practice ideas and really good advice. Sometimes I'm inspired to get moving on something after reading or watching a video about the process while visualizing my project finished.
Be patient with yourself and relax. As others have suggested, take baby steps for short periods. And let us know how it goes!