Hi there! I use a program called ArtRage 6. When I got my first Wacom Intuos as a kid, a free download for ArtRage 3 came with it, and it was the first digital painting software I learned to use. And because I've been using ArtRage ever since I first started, using all the features is like second nature to me. I've tried various free programs like MediBang and FireAlpaca, but I wasn't too thrilled about them(I have a friend who absolutely loves MediBang though, and since its free, you should give it a try). I haven't bothered actually paying for any other painting programs, but I'd love to give Photoshop a go at some point.