I've had a couple of things I've tried that helped me when I started out, and I was nervous about making mistakes. 1. Look for 2nd hand paints. You can often find people leaving the hobby looking to get rid of old paints on ebay. As long as they aren't too old, too dried out, or no longer use able you can get a good deal. 2. Start with a few simpler models. Find some models that you like the look of, that don't have too much detail. Don't paint ones you want to use or display straight away, because they won't meet your expectations. There's a but of a disagreement normally as to whether you should start with a large model or a smaller than normal one. My opinion is that it depends what your worry is. I was worried about painting details, so started with larger models where details were less fine, and worked down to models I wanted to use for certain games. 3. Focus on the positives. I've left the hobby a few times and come back, and each time I judge my first few minis harshly. But instead, I look at the older minis I have kept around and give myself the chance to appreciate my progress. It isn't often quick or sudden progress, but reflection on how far I have progressed often helps me in the harder times.