Single and happy!

Is my niche narrow enough?
The Single Ladies Coach
1. Wealth 20% – (Mental) Health 40% – Relationships 40%
2. Women over 50 who are single after the breakup of a long term marriage/relationship. Have full time corporate jobs in middle management. Close to or empty nesters – aging parents.
3. How to be single and happy; how to be single and happy after a breakup; starting over on my own

Thank you.