Sorry buddy. I have cluster headaches and I know how debilitating they are. Seems new treatment for migraines is on its way, hopefully sooner than later.
My wife was given vitamin B2 (400mg) to try to combat her migraines, she had a weird reaction (possibly a series of things unrelated) and got hives, so didn't follow through, but I figured to pass along the possibly unconventional Med suggestion. (Also takes topiramate)
Have you tried shrooms? Genuinely curious. And I don't mean that as a suggestion, I'm just wondering because I've read that psilocybin can dramatically improve symptoms for some people.
I had tried microdosing before but no good. A tank of oxygen was another treatment. Just not much you can do when the pain is a real 10. Thankfully it does seem you grow out of it. Since I hit my 30s the space between attacks grew and now in my 40s it's no longer 2x a day but a short period every other year. I still follow treatments just in case my son has those genes.
My mom had these all her life and only in recent years got some semi effective meds. I've had them on and off for a while and for a month had cluster headaches, no fun.
I'm really sorry. Just to offer a little hope, a friend of mine at church was beset with almost daily migraines when she hit retirement age, if you can believe that. Several years of trying everything, and a hail Mary pass trying amitriptyline of all things finally calmed them down. She still has mild symptoms when weather fronts roll through, but it's much improved.
I really hope you find something that works well for you. Migraines suck.