To find out what your strengths are and what you might be most successful at, figure out what it is you love to do and would continue to do even if there were no money in it. For me that means writing. For you, it might mean gardening or cooking or programming a computer.
We are visiting my aunt Lillian this week. She has her hair and nails done every week and is still sharp and feisty at 96. Gives me hope.