Hi and welcome Tony.
I used to have a chronic cannabis habit, for about 10 years, I did other drugs and drank too but it was the pot that I leant on to get me through the day. It became my way of coping with life. It led to some severe anxiety and depression issues for me, especially when I quit. I had a kind of anxiety breakdown and started drinking everyday sometime after that. Then I became an alcoholic.
Really, I am one of those people that had mental problems anyway and should never have done ANY drugs at all. They stunted my emotional growth and ability to cope.
So I think I understand some of where you are coming from.
Can you talk to your Doctor about how you are feeling?
Do you want to try and stop doing drugs?