You may or may not have chosen to be born, but all indications point to "acting like you did"--i.e., injecting your own existence with meaning by assuming you had a purpose for coming--being more beneficial to your well-being than a more nihilistic attitude.
http://yourmeaninginlife.com/blog/you-didnt-choose-to-be-bornbut-should-you-act-like-you-did
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