Digital and physical are wildly different mediums. I started with physical art and it took me a long time and a ton of effort to make the transition to digital.

If your dream is to get good at digital, and you have ready access to digital art tools, I would just start there.

(Today's digital art tools were only available to billionaires when I started my art journey.)

Folks often highly recommend Adobe creative tools, but GNU Image Manipulation Program (which is free) was fine for me, when I started (and spoiler - still is, for me).

Others are right that you'll eventually end up doing some physical art too, in order to grow.

For physical art, that you want to digitize, practice drawing with a least two different tip sizes of marker, black lines on white paper. Draw much larger than you intend to display. Shrinking the image, on a computer, forgives tons of imperfections.

I wish I had learned this technique sooner (when to switch pens, how to lay down clean lines for scanning, how to draw oversized).

A modern cell phone camera is more than good enough to capture an oversized black marker picture at much better quality than I usually want to keep. (Hence I shrink the image later, removing imperfections.)

But start with what you want!

If you have access to pure digital tools, start there. Finding some small successes, early, at what your heart wants to create is what will keep you at it long enough to get great.