Need to frickin vent a bit

Tried drawing something totally new on my tablet today; quit after 2 minutes.
Can't figure out how to freehand a decently rounded/sized circle in one go.
Is it possible? How should I approach this problem?
If anyone has any suggestions, please tell me cause right now circles are the bane of my existence :<

/vent

Night, all

Yo.

So I'm gonna be busy for the month studying for exams and such, so no drawing for now. Umm, I'll just go ahead and post what I have done so far. Well, what woefully little I've done. There'll be some things in the scraps too; mostly logos.

But yeah.

This is happening, I guess.