Have faith in yourself! You can go a long way with generative art, which boils down to applying algorithms to build interesting pictures. Building an really good generative artwork requires a lot of work, but the techniques are those of the developer.
- Google "generative art". You'll find lots of images and you can usually work out roughly how they were made. Try to reverse engineer them and create your own facsimile.
Start with something that looks a bit like something you might want to make into art. One of the standard fractals, Perlin noise with a fixed seed, anything that's got a bit of randomness to it. Look for a section that's inspiring. Then look to see if you can tweak the logic to make that closer to what you want it to be.
