Agree 100% with poopipe. This line, "learn technical details, you learn to follow direction and you learn what not to do", completely encapsulates my work experience so far and I'm a better artist and team mate for it even if I don't get to tackle the big hero props or major scene work.
You'll get there. Once the bitterness over your education wears off a bit, you'll be in a better spot to be creative. I've found that working out of money anxiety / desperation for the job will burn you out in the long term. Perhaps scale down a bit back to the diorama work but focus on making it a game ready (optimized…