I am sorry to hear about your pain. You're situation is difficult. I think it may help to look at things differently.
Firstly, you are not faced with a choice between staying at home for a month and getting drunk on wine or taking drugs. Most people, including those of us in recovery, find a way of getting through day to day tasks like shopping without caving in to our addictive urges.
Secondly you say you have no support. This could be about to change. By posting here, you have become part of s supportive community, as you acknowledge in your first line.
Take some time to really get to know the site and you'll see lots of us have been through what you face but made some positive changes. We also sought support in other ways, especially through 12 step programmes and so on.
So we're here for you. Wishing you well.