The more you do, the better and more confident you will get. You are off to a good start just by being on this message board! There is a wealth of info and always seems to be an expert on just about any quilting related topic you can come up with or someone who has done the same pattern or style of pattern.
If there's a particular thing you want to improve on, check here. You can try the search, post a question. I think we all love to see each other succeed. If you are a more visual learner, check out the tutorials section or look on YouTube. :)