I took a 20% pay cut and that's been to all my activities including the dolls. After my bills are paid, being a grown up sucks, I divide the rest in to an allowance for each week until my next pay check. If I want anything doll now it means I can't get something else. Hit a sale on Steampunk fixings for jewelry and Holmes and Watson's case, no spare body with the right kind of neck for the McGanns.
A few years ago when I decided to let the dolls take over I cut out other hobbies and eating out. It stopped me from being able to use MTG and Harry Potter cards for wallpaper and I dropped 8 pant sizes. Try putting a picture of the doll(s) you want in your wallet with your money. Every time you spend you have to look at that face asking if you really need what you're buying.