what do you do when you have nothing to offer anybody

i've had a hard adult life of dealing with mental health problems - ive never been employed, never been to college, have no qualifications, dropped out of secondary school...i have nothing to offer a partner or woman except a good heart...now i live alone, still dealing with psychiatric problems, living on benefits..and i'm in my late 40s.

i have nothing to offer except that i'm a good person, that's it...what can you do if you're in my position?