Lots of people quit learning the day school ends. Be the person who started that day.

For a lot of people, learning happens because a timetable makes it happen, so when the timetable stops the learning stops with it. That makes the habit itself more valuable than any particular subject. Keep picking things up after nobody is assigning them, and the distance between you and everyone else widens quietly for the rest of your life. Hardly anyone notices it happening.

Choose one thing you want to understand that nobody is making you study, and give it twenty minutes a week. A skill, a language, how engines work. The point is proving you can learn unprompted.