JC students, what was something you wished you did post o levels/pre-jc?

Now that o level has officially come to an end, we are finally free from this torturous month 🥳🥳 but I want to do something meaningful during this period of time than just doomscrolling and going out…

I’ve heard from my friends’ older sibling saying things such as looking through H2 math first and like just looking through JC content or volunteering/jobs and stuff like that. So seniors, what’s something you should’ve done after completing your o levels? Thank youuu :D