I had a similar problem until I knew I had to work on a start-up and pick a market to go help. It took me ~2 years to choose that market but I haven't looked back (crypto developer tools).
Look back, not forward.
Take all the things you have spent the past 5-10 years being interested about. For me, it was coding, programming languages, developer tools, design & minimalism, products, B2B, mathematics, economics, investing, productivity. Crypto dev tools is the intersection of those - a new field allowing me to keep doing the things I'm already provably interested in rather than making bets about the future.
Look back, not forward.
Take all the things you have spent the past 5-10 years being interested about. For me, it was coding, programming languages, developer tools, design & minimalism, products, B2B, mathematics, economics, investing, productivity. Crypto dev tools is the intersection of those - a new field allowing me to keep doing the things I'm already provably interested in rather than making bets about the future.