In any other time, I'd say travel and volunteer - habitat for humanity or something like it - spend some time just unwinding and doing something completely different from what you've been doing.

This time will let your mind wander and come up with ideas for adventures, hobbies, other lines of education or business or art you'd like to try your hand at.

In covid times this isn't really possible, at least for 3-6 months. Maybe learn to play the piano or something? Any interest you haven't had time to pursue is game.

Invest some of the money - ETFs in popular vanguard indexes in something like M1 Finance is what I might do. Don't look at it every day or even every month.

Financial Independence is a great gift - the gift of time - and having it so young is great. Enjoy!