Try something small and fun
Make up some poholders and try free motion. Don't be afraid, just play. If they aren't fantastic, at least they are useful. This will give you practice using the FM technique and getting used to the machine. Sometimes new machines are daunting on their own. If you can, get instruction with the use of your machine, if not, have a friend come and show you or at least lend moral support. Friends from a quilting guild are helpful. My daughter lives a long way from me and is trying to learn to sew/quilt at the same time. She is a real chicken and I have to sometimes talk her down out of the trees when she freaks out about things. Nothing is going to kill you if you don't chew on the sewing machine cord that is.
You are your own worst enemy at this point. Don't have analysis paralysis, just get on in there and sew. Things will look better after you have a project under your belt. The only one to give up on you is you.