This project is incredible and the author is an exceptional talent. So much complexity spanning multiple disciplines.
The radar PCB is incredibly complex and dense, and worked on the first revision with only one minor issue. That's remarkable. Imagine writing an entire software application and the first time you build it runs as intended with only a couple compiler warnings.
Psychedelics + cognitive therapy has a lot of promise. There's a lot of types of psychedelics and therapies to investigate. MDMA with a group of close friends/family in a safe and loving environment is probably the best you could do on your own.
Personally, cold exposure + lots of coffee + engaging work w/ others has been more effective than anything I've found in the healthcare system. Commit to daily work/social obligations, then drink enough coffee until you can will yourself to go everyday. Once it starts to become a habit is when my depression (slowly) will start to lift. If I stop for too long I fall back into the hole.
He knows what he's doing and has a plan. He's a very smart person.