I started with a SIL attending a quilting course at a local community college. It was hand-piecing 12" sampler blocks. I learnt a lot, and made all the blocks, but still have them unsashed and awaiting completion.
At the time I was working with fabrics that I had in my stash, but most of them were clothing fabrics, 'cause I didn't have the funds to spend money on "craft".
I've come a long way since then, and have no fear about adding to my stash. My sister has been a great enabler - she let me have a huge box of samples that I love, and dig into every time I think about making a tote or quick gifts for various occasions.