Well said Marcus.
Gnarly your in my thoughts and I know you can get clean if you really want to.
Maybe you will change your mind and not use tomorrow. Maybe you will tell your friend that you need help and it will help if you don't use together. Just a couple maybes for you to maybe (!) consider
Anyway I feel your pain and relate to the frustration. I don't have the answers .... But there is an answer inside of you. You may find it if you stay clean.
Good luck always and no matter what !!!