Seriously just want to give up

So we already went through the sleep regression. We dealt with 30 min naps and up every hour/two hours at night for weeks if not months. We had maybe two weeks of decent nights only waking up once or twice, along with 1-2 hour naps. Now things are going backwards all over again?? I seriously just can't deal with this anymore. He wakes up crying hysterically every 30 minutes and nothing I do can console him. Goodbye hour long naps. It's worse when I pick him up so I don't even know what to do. I don't believe in cry it out but I also don't want to rush to tend to him every minute either. Does anyone have advice? I've tried tylenol in case maybe it's teething but nothing helps. I thought I was doing good following sleep tips and advice, I always put him down awake, etc. I've followed and purchased takingcarababies in the past. I'm just SO. DONE. People say at 5 months it gets easier and I'm just waiting for that to fucking happen.