>>280284468
I'm actually the same but I've built models from fullscratch. Learning how to do a lowpoly/medpoly sculpt or straight edge pull from 2d references is what you need to learn to do, and that's actually fairly easy. 
https://www.youtube.com/watch?v=F1CTfis1TEg this tutorial is old but is straight to the point.
You can go from hacking models together in blender and making simple props to making full characters from reference pretty fast.
it helps to be able to draw those references from scratch which is the main difference between sega and shonzo for example.