You should generally live your life ethically and to the fullest regardless of what happens when you die; you should also at least try to work toward major goals that you have and make choices that shape your life into what you wish it to be.
https://yourmeaninginlife.com/blog/the-implications-of-not-knowing-what-happens-when-you-die
You decide what meaning the events in your life have to you.
https://yourmeaninginlife.com/blog/you-can-find-meaning-in-whatever-happens-to-you
Asking where you see yourself in five years is a good exercise to determine both where you're going and what you want to be doing today to reach your desired future state.
https://yourmeaninginlife.com/blog/where-do-you-see-yourself-in-five-years