I started with meandering and it is still my go-to quilting design. At first I found myself very nervous and stressed and it showed in my stitches, but using Machiners quilting gloves really helped. I also found listening to relaxing music helped ease my tension and taught me a smooth rhythm, which in turn made my stitches better. Try to keep your shoulders relaxed. Doodling helps me immensely in building muscle memory. I doodle each new design a lot on white boards and when it comes time to actually quilt it, it feels like second nature. And practice! You can totally do this!
