I did lithium for several years - went from 2 episodes a year down to one, and the episode was shorter and less intense. This was several years ago, and after I found out I was allergic to verapamil. There were very few alternatives at the time, so I went with it, but I also believe that it harmed my kidneys long term - my eGFR hovers around 60 to this day - at some point I tapered off to do a bust, and never went back. I no longer use triptans either - just some Stacker B12 energy shot (cheaper than 5 hr energy, available at WalMart) and oxygen, where I invested in a demand valve regulator, which I think works better, but is several hundred dollars (I use a welding regulator to go to 50 lpm, and the demand valve takes it to 40 lpm:
http://www.porterinstrument.com/product/dental/Porter-O-Two
I don't use the quick connect, but have it screwed into a welding regulator.
I have also been enjoying Reishi mushroom tea after my oxygen, with a little stevia, as the oxygen is very drying. Reishi is not a psychedelic, but I find it relaxing.
I've also had multiple occipital nerve blocks, temporal nerve blocks, botox - none of it ever really helped long term. The only nerve block I haven't tried is sphenopalatine, which creeps me out a bit, but I may get there eventually. I'm currently messing around with Aimovig and Ubrelvy. The beast broke thru the Aimovig 70mg which had me headache free for a year and a half, so I'm going to take the Ubrelvy at night for 10 nights straight to see if it breaks my episode, and follow that with the 140 mg dose of Aimovig. Had tried 240 of Emgality, after a dexamethasone taper, but it did nothing, and the HAs continued.