Well, so far so good. I haven't done any impulse purchasing, which was my downfall. I did go by the LQS because I needed a certain colour for a mystery quilt I'm doing. I was so proud of me as I only purchased a yard of sale fabric. My personal definition of the moratorium is not to buy fabric "just because" and to add to my stash. But only buy what I need to fill in on a certain project.
As someone else said, this is supposed to be a fun project, not a burden.