Green Discharge?

So i had a small yeast infection back in October (i think?) And bought some OTC cream (generic for monostat) and it went away in like a day. I followed the instructions and took it for 3 days just in case.

Okay late December, theres green discharge that i cant get rid of. Not pregnant, didnt have sex, and dont have to worry about a baby since he was 6 months old at the time.

IT STILL HASNT WENT AWAY. The soonest appointment i can get over it is freaking FEBRUARY.

Any tips?? Im broke and cant afford anymore cream... getting worried. Its really messed up my period!