How are you doing today, my friend?
I understand your concerns about someone questioning your ability to live alone. However, on the positive side of that scale, any challenge would have to take into account your intelligent weaning off of your meds, and *most especially*, your decision and efforts to stay sober. The fact that you have made such choices for yourself and had success (yes, I know there are a few slips, but everyone has those) speaks volumes about your ability to take care of yourself.
The other things like paying bills or phoning the doctor are tasks that you might choose to tackle *later*. However, you've proved in spades that you're capable of defeating some very tough aspects of living alone, and so you're very capable, dear friend, of tackling others when you're ready.
It's scary to think that someone outside - your mother, government, etc. - might challenge your right to live alone. I think that happens to many folks, but usually not until they're elderly. You're having to deal with it now, and it's frightening, I know. Try to stay in the moment, as Kitt would say. You hae accomplished much, and you show each and every day that you're able to function very intelligently and determinedly on your own.
Love and hugs,