I am 70 and still recovering from a badly broken knee and leg. There are so many things that are overwhelming me, partly due to Medi-Cal reducing my assistance for Medicare. They won't fix it. Think I can live on $700 a month and keep my home (no house payment,. but still insurance and property tax, and of course repairs!) Some of the "little" issues that are getting big! Leaking hoses, florescent light fixtures need replacement (have bought them). faucets need to be replaced. Light fixture needs repair, replace fluorescents in garage and kitchen (I can't reach and can no longer get on a ladder). Back yard is becoming a fire hazzard, can't afford gardner. Floor tiles broken in the house.
But I'm also going to suggest that you think long and hard about how long living alone is a sustainable and practical idea. Do you have a trusted relative, advisor or pastor you could discuss this with? Please keep in touch and let us know how this works out
Sell the house "as is" if necessary, otherwise the repairs will keep piling up. Take it as a new adventure and as meeting a lot of new people.
Of course social services won't help as you own your own home, and it's not their issue if you cannot afford to keep up your home. As for the Boy Scouts, you have to be careful as they aren't professionals who are licensed and insured. You wouldn't want any of those fine lads to get hurt while climbing a ladder to fix a light. They aren't plumbers, either. Maybe they could help clean up the yard. But that doesn't solve the problem.
Even if you get a small amount of equity from the house, there are senior apartments where the monthly rent is geared toward your income. Once your leg and knee heals and you are finished with rehab, look around for a part-time job. It's not unusual for those of us who are your age to be in the world force :)