I really should warn people

After all the reason I keep raising my prices is to keep people AWAY from asking me to commission. I have around 230+ currently and I finish like 2 a month and get 5 more every month <___<. Slots seem cool and all but what if I miss a REALLY cool commish??? I need to warn people somehow I'm a shit artist and very unreliable. It's why I don't ask for pay first, cuz there's always that chance a year passes and it never gets done due to a lack of interest or something. Then there's the one that I DO work on but can finish due to my job or how busy I get socially. It sucks and I hate dissappointing you guys. I wish were more efficient...