You stop buying something you usually buy (cheese, good bread, brand name smokes, etc) to save money to go to the dentist as soon as possible. My partner had one and it absolutely was hell on earth to them. It absolutely has to be removed or dealt with. They might want to implant something in its place but honestly just lie and tell them you'll discuss that once the rotten tooth is out and pretend you're gonna agree: only pay to get the tooth out then consider further work, don't let them pressure you into getting a crown or some shit before they fixed you.
You stop buying something you usually buy (cheese, good bread, brand name smokes, etc) to save money to go to the dentist as soon as possible. My partner had one and it absolutely was hell on earth to them. It absolutely has to be removed or dealt with. They might want to implant something in its place but honestly just lie and tell them you'll discuss that once the rotten tooth is out and pretend you're gonna agree: only pay to get the tooth out then consider further work, don't let them pressure you into getting a crown or some shit before they fixed you.