I made a small four block (and sashing) sampler that I handquilted for my first quilt. I can actually see my progress on the quilt, going from large, uneven stitches to smaller (not small, just smaller) and much more even stitches. So practice really does make perfect. Keep at it and it will come!
Besides, only quilters and people who do some kind of handwork themselves might notice that your stitching is uneven and large. Others will just be in awe of what you accomplished!