God I know that exactly feeling. I wish I could figure out a solution myself, besides just keep trying. If the doctor isn't helping, don't stay with them. I know I've had to change psychiatrists so many times over the years. And I've grown to be really wary and untrusting of a lot of doctors since I've had so many bad experiences with them. They constantly ignore my symptoms because I have a history of anxiety, they never believe anything I say. And guess what? Yeah I was right and fibromyalgia was it the whole time. Medical malpractice is like the 2nd leading cause of death, we have every right to question them and their decisions. You know your body better than the doctor sometimes. Trust your instincts. Doctors can be wrong.
As for pain, I also %100 feel that same thing. Most times it's so hard to go to sleep because I can't get comfortable. I have to have muscle relaxers to sleep. It definitely made a big difference but the pain is still noticeable during the day. I can't even sit and watch TV, or be on my computer too long. The only thing I've found that worked was some organic supplement tablet thing I found online. It really dissolves the pain almost entirely. But the downside is that sometimes it doesn't work if you ate recently or you didn't dissolve it under your tongue correctly. I'm also trying acupuncture but I'm not sure how it will go. My rheumatologist has recommended trigger point injections. But honestly if everything fails, I think I'm turning to CBD. I've heard good stuff from it especially for people with long-term pain. It's better than constantly downing painkillers, which can mess up your body in the long run.
The main thing is don't give up. You WILL figure things out. It might take some time, but it will happen. You deserve to be as pain free as anyone else. Do whatever you feel is necessary to help you reach your goal. People will always give stupid advice. It's easier to just ignore them than trying to explain things. Trust me I've tried lol