I was thinking the same thing last night. A college student or a retired single woman would be a great asset and bring in a bit of money, as well as possibly helping w/D12. I know several women who have done this and it's been a success for them in all areas, i.e., including sharing in the upkeep of the home, groceries, etc., and they've become the best of friends in the process.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.