yeah.. it happens to me always i start making something but u just have to look in ur imagination like combine all the ideas u have make it crazy,
start hearing music, first classic, strart drawing something that u relate to that music, then put rock, then draw what uu feel like with that, then the best:
SKRILLEX! then draw something that u feel of that music..
Tada!! u have a masterpiece to ur mercy!
but really, it sometimes work, start looking for animes get ideas, eyes, hair, see homies sitcoms, get ideas... ears, hair beanies..
see memes get ideas: Face
hope u get ur creativity back