Hey! I'm a licensed Dental Hygienist. I think you should get your issue fixed asap before it gets worse or starts to hurt more. Honestly, you should consult a few doctors where you are and discuss a payment plan with them.

If you only get the root canal done, that means no post/crown, it should be able to hold you down for a few weeks, maybe even after the holidays and won't be as expensive. You can worry about the crown later until you gather some money.

I know how much that sucks, I'm sorry.