Totally. I was doing digital a couple months ago, and I stopped because I wasn't able to finish something. As a beginner and a perfectionist (I have anxiety disorder that even make me stop drawing or painting because of the pressure I put on myself), the best advice I receive was to practice letters with a pen so you can't erase. You have to just let it go, and start again. I will for sure go back to digital, but I will still use paper and pens, because commitment on a paper is easier. If you starts with a color, you can't go back. If you make a mistake in your lining, too bad, you have to find a way to fix it creatively instead of hitting ctrl-z. I feel I progress more on paper, equally creatively than mentally if I can say it like that. I think that when I will be more confident with my style and my base sketches, it will be the time to experiment with digital.