I think the stuff I wouldn't usually draw, pick one and doodle it.. my brin rebels and starts sending ideas I -do- like XD

well, what happens when you practice something or do something a lot, your brain will get exausted from doing this. this is called diminishing returns (i think). if this is the case for you, then just stop drawing for a while. maybe an hour, day, whatever. if you're just uninspired, just go outside and look for subjects and situations to draw. hope this helps. =3

I have a massive list, and it could be yours XD
warning:
massive list contains both mature and clean, original picture theme ideas
several ideas may cause you to feel excited
several ideas may freak you out
my ref is attached to the bottom of the list... cause I made the list.....

i draw fanart for the things i like

I have a couple things I do as a writer, same concept apopliees

Hands to keyboard, or in your case, pencil to paper, shut your eyes and just DO. Don't think, just DO. when you feel something getting drawon, open your eyes and keep going on it, elaborate on it and you most likely would come up with something you like.