Ah, yes, the learning curves gets steep, then flattens out a bit, then gets really, really steep, and on and on. I have, over the process of several projects, learned to cut more accurately, sew that 1/4" seam very carefully, and to press well. It all makes such a difference.! I just finished a couple of placemats (that are going to stay here, by the way, after many projects that I've given away). Because I was super careful at every step (my little 6" Omnigrid ruler is my BFF), they both turned out well!
For me quilting is not a hobby that goes quickly, but I really enjoy it and it's worth the time and effort. I totally agree it does require patience - lots and lots and lots of patience. Hang in there; it will pay off in the long run!