what do you do when life has gotten too hard?

live with three ppl with mental/personality disorders and the strain is starting to make me crack have a daughter with an overbearing mother in law who would love to usurp me she portrays herself as a saint and loving and gushy and has own issues with smothering her own sons one of which is so messed up and twisted he needs to always live off her in some way and recently we got into a big fight and now i cant see my grandchildren the strain at home is horrible my husband has extreme high anxiety and has borderline personality disorder my daughter has adhd bi polar and same borderline personality disorder my mother has Alzheimer's and early signs of dementia i took to shopping for a while till I ran accounts down to low now just bounced a check I need a break cant carry all this anymore we have no health insurance don't qualify for state medical assistance since my husbands unemployment is too high or i would go c a therapist or psychiatrist feel like I am going to break been praying to God for months and nothing happens really really cant take anymore tired of crying and don't know what else to do want to make a change and don't even know where or how to start something soon has got to give