Jo - First - just because you didn't tolerate the antidepressants, doesn't mean there isn't help for your depression. Don't give up. Fish oil, B vitamins, one of those special lamps they use for SAD, regular exercise - there's good evidence for all these things. Make a plan.
Second - you need to change your living conditions. Seems to me, you'd be happier, and life would be smoother, if you could get in some kind of cooperative living situation? Shared housing of some sort? A better community? Split a house with another single mom? Let's think creatively here.