>>5906707>I keep making mistakesStay with the mistake, live with it and finish the drawing. then draw again.
Start with simple drawings first, don't go for a masterpiece in the beginning.
For practice with GPEN:
Trace over your favorite artists.
>Grab a manga page or illustration>Turn it into light blue color>Print it>trace over as best as you canMost people won't recommend this technique because it's basically stealing art, but as long as you don't post it online you're fine, it will be your little secret.