Art block!

Have you ever looked at your old stuff and said wow o-o why i cant have those ideas at the moment! : '(
ART BLOCK T-T what can i do..
this sketches were assignment for my computer paint class at the beginning of quarter  and im almost at the end of  the quarter!
and i  like what i did there
i used a lot of artists references maybe in some poses as well!
even though im always lost in artists blog trying to get their ideas and design style and study theyr work i should pay more attention : )