Lets not forget that in a way everyone is responsbile. That whole "feedback" loop and what not.
I notice that during every one of my drug addictions, the longer I stayed addicted, the worst my mothers anxiety and depression would get. My moms depression actually lifted when I caught my 7 year sentence. This is because that first year I was more stable, grounded, and ambitious to get clean than I had ever been in my whole life. She picked up on the energy and rather than my bid bring her down, it actually made her a much stronger and happier person.
When I got released and was clean for 5 years her mental health was great, she was loving life. She's very emotionally attached to her children and its crazy how my actions effect her so profoundly.
Well this current time I've been addicted for 2-3 years now, this is the only time I haven't told her whats going on... but its STILL affecting her. Its like her mind doesn't know it consciously, but she can still sense it, and now once again my addiction is bringing her down. She's pesimistic all the time, negative, angry, bitter, I really believe she blames herself for me being the way I am. We fight more than ever now, and its stranger how I know if I told her I was using and wanted to go to rehab, that she'd likely get happy again. Its the not knowing and worrying that gets to her. Sometimes I think she's crazy, but the reality is shes "too good" of a mother. When her children are sick and doing bad, shes sick and doing bad.
The only reason I right this is because imagine if you weren't a drug addict. Imagine if you had your own family, house, wife, and had a successful career. Something tells me that would rub off on your mom in a good way and at least give her a little boost in life to be proud of what she brought into this world.
People say "you are your own person", but people also forget that we are ALL connected. Our energies spin off into other peoples lives, get fed back to us, sent out to other people we interact with. Life is really nothing but a cycle of good and bad energies going back and forth imo. What we do DOES effect other people. And what other people do CAN and DOES effect us. It takes a very very strong person to not let family issues like that effect them. All I can say though is look out for yourself, try to get clean, and let that positive energy rub off on your mother.