I can't afford a new fridge right now, and I probably won't be able to for a while. But the fact that the freezer is still working gives me some hope that whatever went wrong is simple enough to fix on my own. Are there any repositories on the internet where I might find a guide or a checklist on diagnosing the problem?
EDIT: Thanks so much for all of the help. Unplugging the it and letting it defrost for a couple of hours actually did the trick. It's now getting cool again.
Alright, thanks. I'll give that a try.
For what it’s worth I was going through the same thing as you and unplugging for around 30 hours did the trick. If your freezer feeds the cold air into the fridge then try to make sure there’s not stuff right up against the venting area in the freezer