Hi Norma and welcome to our caring BB community;
Yes I agree, getting older in this day and age has its downside. How is it affecting your sense of self? I used to feel the bite of isolation pretty hard, but I've warmed to it over time.
I'm wondering if your health has a lot to do with how you're feeling. Mine isn't what it could be and scares me sometimes thinking what would happen if I fell and hurt myself. I carry my phone all the time due to this.
Mrs D (Dools, above) has hit on an important point; company and social connections help to take the strain of feeling alone. It can be a little intimidating to start with, but persevering can help to overcome insecurities. Having this 'social equity' or 'social capital' is like an investment in your life; it pays long term dividends if you're willing to go the distance.
(Sorry to sound so cliche', it's a habit formed thru writing on here so often)
I'm wondering if you've spoken to your GP about how you feel. They may have something to offer in terms of resources in your area, or a counsellor to talk with face to face. You can call Lifeline 131411 and BeyondBlue Crisis Chatline 1300 22 46 36 when another voice in the room would be appreciated. I do this sometimes to fend off worries and concerns.
You can also continue writing here as you have to connect to others online as well as your offline life. Another forum which might suit you quite well is 'Sane Australia'. Their forum's really social at times even though it's a mental health forum, so sign up there too and see what you think. :-)
I hope I've helped hun. You seem an intelligent and vital woman and deserve to feel connected and needed. Keep in contact and tell us more about who you are and what you want.
My sincerest kind thoughts;