Desperately need some relief...

I am so lost and feel like such a horrible mother....I don't know what to do. My little man is teething HARD. His molars are coming in and it seems like soothing gel doesn't help him for more than a few minutes. He's fighting naps and bedtime, only stops crying/screaming when being held, using my poor nipples as a chew toy.....I'm going crazy because I'm sick(ish) and I'm exhausted just as much as him. Please spam me with some ways to help soothe him and get him to sleep comfortably. I can't stand seeing my baby so unhappy and hurting.