The best business ideas often come from problems you had to live through. Your hard years might be market research.

Difficult experience leaves you with knowledge that cannot be bought: what the problem actually feels like, where the existing solutions fail, what people living it will and will not tolerate. Most things built for a situation are designed by people who have never been in it, which is exactly why so many of them miss.

List three problems you know from the inside and have never seen handled well. You do not need to start a company. Even noticing which ones you understand better than most people tells you where your work might be unusually useful.