my lines aren't smooth or sharp like you can do on paint tool sai

I’m having serious trouble… its hard to animate on this harmony essentials. i see tutorials but all their lines are sharp and smooth. don’t tell me about the “smooth bar” cos my lines still look gross and stuff. i really need live help from either picarto, skype or any screen sharing program. please i really need this help… if anyone is interested in helping, reply to this or email me at dextorcolo@yahoo.com please i am in dire need of help… i really want to animate… but moving from sai to harm

Liven Up Your Line Art With Smooth, Attractive Lines

inkscape - smoothing unclean lines in GIMP - Graphic Design Stack Exchange

I can't get my lines to taper!! : r/PaintToolSAI

N I C E ! ! — HI HERE IS EVERY SAI BRUSH I OWN

Painting a Rock · 3dtotal · Learn, Create

Paint tool SAI】 Lineart

What are some tips to draw a perfect circle on Microsoft paint? - Quora

How To Draw a Lemon Step by Step Procreate Tutorial - dobbernationLOVES

Beginner Paint Tool SAI Tutorial // All my Tips

Unity Toon Shader 0.5.0-preview Manual, Unity Toon Shader