First off you sound so sad . Your post could be from my son that’s exactly how he is . The only difference is you want to stop using weed oh how I wish my son would have the same understanding of his situation . I think it’s going to be hard work for you but just think of the positive way your life will improve ! Have you contacted a drug support group you can’t do this on your own its sounds to me like you need professional help . Did your doctor offer you any help ? If not see a different doctor . Where I live we have lots of help for people like you looking to make changes I don’t know if your lucky enough to have access to these types of support .. It will be so good if you could contact someone and just speak to them please try . I hate to think of you suffering and I’m sure your family and fiancé feel the same .
Best wishes
Lolipop