>>27634998theres a lot of different things you can do to impove your inking, but a lot of it comes down to practice.
draw with confidence, in quicker motions and undo if your lines dont land right. drawing with your elbow instead of your wrist also helps a lot.
if you have a particularly long line to draw, zoom out to make the distance shorter and easier to cross with a short quick stroke.
draw with a bigger pen than you want and carve out your lines with the eraser tool (this is what i end up doing alot) unfortunately its usually slower but you do get more line variation like in this pic