Your story sounds identical to that of my boyfriend. He took his life last week after a shockingly fast trip through “bipolar episodes”. I tried to tell the Drs at the start of his mania that I thought his extreme cannabis use was a factor and they refused to believe me. When he did not clean up in a few days in the ER from what they thought was adderall effects he was labeled bipolar and told he didn’t have a change. I worked very hard for the past year and a half to help him recover and think he had a chance. Inevitably he returned to abusive cannabis use and another “episode” that he did not make it through. I am sorry for your loss. My heart is broken for our failed boys. They deserved more.