Sounds sort of like what I was/am going through. I am the breadwinner, I have a high stress job, I cannot take time off...and I have absolutely no resources in my community in which to rely on.
The only thing I could do and recommend is complete focus and resolve. Find whatever resources you can online- and then start looking in the community. Find activities at night. Find a hobby to focus in on. Just focus.
I'm in no position to really give life advice seeing how this is my first try at sobriety- but this is what has kept me sober for 6 days so far.