(M28) I have major depression 4 month after quitting THC, I want to die everyday when I wake up, I don't know what to do

Hello, I have been smoking joints of tobacco and cannabis everyday from 15 to 28 years old, I quit around 140 days ago.

From the first week of quitting I have started to develop major depression caracterized by apathy, unability to think properly and focus, anhedonia. It's getting worse everyday without any improvement, I have stopped studying, stopped reading my 100 daily pages, stopped being interested by anything, don't even watch the news anymore, I am getting stupider, fater, and I have lost all empathy. When I wake up I spend around 3 hours before leaving bed and all I can think about is how much I want to die.

My doctors have no solution besides basic SSRI that do nothing but worsen my symptoms. I don't know what to do.