4-1/2 months of continual almost daily use. How long will my rebound be as it pertains to depression, brain fog, anxiety, etc,…?

I really have struggled like hell to get off this demonic drug. I was able to make it to 7 days once and 8 days another time. That’s the only 2 times I’ve made it past 2 days. Other than that I’ve used mostly daily. I skip a day or two here or there. But, I hate it with everything in me. It’s done nothing but take and take and take. Not only that but it’s really affecting my health and completely obliterating my brain chemistry. I am diagnosed bipolar and I’m not going to list everything but I have other mental health problems as well including major depressive disorder. So when I quit the only thing that takes me back to it is I get to the point where the depression, lethargy, apathy anhedonia and anxiety are overwhelming for me and I mess up. I’m already a naturally majorly depressed human. So going off of dope feels like the worst thing I’ve ever experienced and I can’t do it justice with words. I need advice, help plzzzzz. I can’t go on stuck in this cycle. I want my soul, heart, mind and life back. I want to live again. I’m nothing but a dead man walking now.