We all have things we might like to change about our physical bodies and we can to some degree though diet, exercise, make-up, cosmetic surgery, and other ways. No matter how we change the outside if we never change the inside, we never really change.
As we age we feel even more insecure about our physical bodies. Age brings a whole new set of problems and worries that we have never faced before. Everyone gets older, it is part of the cycle of life. Some people cope better than others.
Being single and getting older has its special challenges. Who is going to help you when you are sick? Who is going to encourage you when you are depressed? Having a partner or family as a support system is important.
We have to learn to accept our bodies as the temporary vessels that wear out. Enjoy life while you are young, but take care of your body as you will live in it a long time.