It is okay if you don't have a stash...
I have recently read many threads about people who are overwhelmed by their stash or others who feel they must invest in huge amounts of fabric to build a stash. Building a stash is not a requirement for quilting. Some people love having a stash and find it incredibly great for their quilting but for others it is an obstacle or headache and spend forever trying to store, rearrange, sell and donate fabric or try to use it up.
I started building a stash with leftovers and found that having that much stuff just made me nervous. I am currently using up all that fabric (and it isn't even all that much) on scrap quilts and have decided to just buy what I need for each quilt. I always buy a bit more than I need just in case I mess up... And when that pile starts to build, I will make a quick scrappy quilt.
Remember to do what works for you. Just a different point of view.