Sky falling

I'm thinking more about my own mortality( I wrote mentality first). I'm seeing my immediate family shrinking,people getting older, dying. Growing up and doing there own thing. Connections drifting. Alot through my own fault I don't keep in contact .Not even  with the ones who live near me.Not quite estrangement but distance.I have nothing to say or it really isn't interesting to them.I find I want to avoid it to an extent as it makes me sad. It makes me think of a time thats not there anymore. What happens though when they really are gone? I'm making my daughters circle small. I can't keep on trading off the goodwill that people have towards my parents, care who I'm related to or have crossed my path.
My Mother owns the house I have the use of, the Organic Farmer his own. I'm fortunate they share with me but that might not last .Right now I don't think I will ever own my own house,bought or built but neither do I have the fear of homelessness. It's more a case of lonliness . The wider world might not tolerate my quirks so readily as those who are used to me.There are so many things that they help me with and tolerate. I'm scared of having to be totally independent well I don't know is anybody really but they tend to be more self sufficient then me. And when the rest are gone my daughters stuck with me so I have to do better,save more ,have something to leave her. I don't mean just materialistically , I mean a support network. People who will mind her after  I'm gone. Not when she's young but when she's an adult. Help here get on with life, set up bank accounts, book driving lessons, buy a car, get through college (if she wants to go). I'm haveing a bit of an exentencial crisis about this. Even though the odds are I will live into my 90's like both my Grandmothers ,sure I have a 101 year old Grand Aunt! It feels as if things are pasing me by or I'm not quite up to speed with other people my age or embarrasingly ,younger.
I need to get out of my own head, carry some water or chop some wood, that might help with enlightenment