Yes! When I was first starting out, I used Paint.NET (awful tool for making art), Paint Tool SAI (Good, easy to pirate) and Clip Studio Paint. CSP is by far the most robust tool that I've used, but truthfully when it comes to ways that I have improved as an artist, I found that imposing restrictions on myself with Paint was the best way to improve. I feel like I've improved a lot since I started using it!