I was in a similar spot and decided to start "doodling" which is really just FMQ on paper. I recently started on my third sketch book. The other two are full of FMQ quilting designs from meandering, over loops, all the way to feathers. The more you repeat each pattern, the more muscle memory you build and the easier the actual FMQ process gets.
Until you feel confident, use a thread that blends and have fun with it.