The best piece of advice I've received for fmq was to worry only about the part of the quilt that's under the needle. The rest will take care of itself. Much easier to quilt one block than to think of the whole project!
The other thing that I think helps is give yourself a project that you can "play" on. In other words, anything goes and you don't have to worry about it being perfect. My scrappy log cabin was my latest "play time" quilt. I have many!
Another suggestion is to pick a shape that's easy for you to use. I can make hearts til the cows come home. I now make really neat vines with heart shaped leaves.
Best suggestion I can give you - Go have some fun! Play!
P.S. I remember in a much earlier discussion of fmq someone suggesting a glass of wine and music.