How do i use the fill bucket!?

so i’ll make an outline of a shape with the pencil and then use the fill bucket to fill in the entire thing but instead of doing that it makes all my lines with the pencil all jagged and sloppy how do i use it!? 2017-12-08 (1)|690x387

It dissable gfor know, i think

where and what the heck is “gfor” and how do i do that?

sorry i couldnt answer. I ment for now, where what?