What would you do If you could...?

If you could start your life back again from age 15 with all the knowledge that you have now(the year will still be 2024),what would you do?what's happening after O/L,are you writing A/L,if so in what subjects.which degree are you planning on getting,or are you not going to university at all.and instead do something different (YouTube,online business,maybe even leave the country)I'm interested to know your thoughts.