I got my screen tablet working and its amazing

THOUGHT I cannot draw on it, my hand or it wobbles too much for the lining to draw or ink a pic.

I did a test for Shading and I DID this in mins when it would take me HOURS!

I am so happy, this is the only reason I wanted this for SHADING!

even thought it did cost a lot to get, I am a little sad I cannot draw on it, all my lines are wobbly, anyone know how I can fix that?

if not then I only gonna use this to shade, but cause of how much this cost to get my shading gonna be a bit high in price ^^;

so SOMEONE TELL ME HOW DO I FIX THE WOBBLY for my DRAWING ^^;