Without knowing exactly what you struggle with it’s hard to give good instruction on what you can do to improve. So the best I can do is say to study, find styles you like and practice as much as possible. For doing comics, I used to recommend just doing it because you learn a lot from the process, but some people don’t take criticism well. You need criticism to get better. It helps to remove the veil of what you want to see and shows you what you have actually done. For example if you type something out, and you make a typo or you use the wrong word. If you go back to read it, you will probably miss the typo or the wrong word because you remember what you were TRYING to type as you wrote it. So you read it as you thought you wrote it. Same happens when drawing. It’s why digital artist will flip their canvas often because it changes their perspective. If something looks “wrong” after mirroring it, it was wrong to begin with. Mirroring something should never make it look bad. If it does, the drawing was bad and your brain made it look how you thought it did, not what it actually looked like. Oh and before digital artist people just used Mirrors 😀