For me, everything is so easy to tweak with digital tools: you can click and drag, undo, adjust colors, etc. But what I discovered is that I was using all of these tools without really understanding the basics of shape, color, or composition. My "bad habit" was that I dove into fine-tuning and adjusting way too quickly.
Traditional art is harder to "tweak." You can either add marks or erase them, that's it. Learning to work with those limitations means being more thoughtful and deliberate with your mark-making.
I took a step back from digital for almost a year, and focused on pencil and ink (with occassional markers.) Now that I'm using digital more regularly again, I feel a lot more confident and in-control.
I think digital tools definitely offer a shortcut. But shortcuts only work if you know where you want to go, so to speak.