If you really enjoy quilting then please don't quit. I also am on limited funds. buy the best quality fabric you can afford. Goodwill and Salvation Army and other thrift stores are great places to shop. I know a lot of people think that you have to use 100% cotton....but I also use some poly/cotton blends. I try to use a blend with as much cotton as possible. Bed ruffles are great a lot of them are polyester for the part that lays on the springs but the ruffle part is cotton. There is a lot a fabric in those ruffles! Good quality, gently used cotton clothing is great. You seem to have the most important and basic items so if you enjoy then continue to enjoy. Ask for gift certificates from fabric stores for birthdays etc. We can always come up with something for our quilting needs. Like a flannel back table cloth or old flannel sheet from thrift store for a design board. You might have to think outside the box to make do but that can also be fun and just think of how proud you will be when you come up with a nifty idea! I say "go for it"!