Start small. Pick a small project (lap quilt, perhaps) to get the thrill of finishing something you started. Not too small, though, as small pieces can be quite challenging to work with , especially for a beginner. I began with a class using Alex Andersen's book "Let's Start Quilting" and we did the sampler in there. Learned several different blocks in a few weeks.
Use the best tools you can afford.
If you don't like what you're working on, press through. There's usually a moment (or several) in every quilter's project that she is not happy with the fabric choice/pattern/techniques etc . Instead of giving up, though, quilt the thing. You will like it better later. If you don't, donate it.