Fuck im 25 and feel 40, this is why I will not shy away from my day of destined death. I can feel that it'll be before I'm 40 and I frankly want nothing to do with being 40.
One day you'll wake up and realize people born on the year you graduated school can legally vote, drink, etc. A short time later those kids have kids of their own ... and you are ( or are old enough to be ) a grandparent.
The worst part is you'll still mentally feel like you're not much older than your late 20s or 30s.