I had that problem, especially the first week. I still don't have full control, I'm not nearly as good with the tablet as with a real pen&paper. It's just about motoric brain-hand-eye coordination skill I guess.
I keep my A4 tablet in my lap, draw with my left, and my right 'color picking arm' goes diagonally across the tablet so my palm rests on the top edge and I can press left 'Alt' to color pick. I guess that also allow me to sense the angle of the tablet.
I think a lot of people buy tablets and think they're gonna get better at art just like that, and soon realize it's not as easy as it looks.
I really need a tablet cuz I did all my CG's with a mouse and the wrong hand before that. (I still use the mouse with the right hand although I'm left handed)
Another problem I had was the CRT monitor making the cursor wobble (when I had the tablet too close to the screen) cuz of static electricity or something.
Jamen jag tror att han skäms, och har gömt sig. Vårt universum det är en av dom otaliga spermasatser som Herren i sin självhärliga ensamhet har runkat fram för å besudla intet.