From a grandfather
You are so right MaxF, there's really nothing else anyone in their late 20s to live for, unless you just enjoy paying taxes.
If you are earning an income & can plan a little bit, then sit down & study a few maps. You just might start to enjoy that. Save money for your goal.
Figure out what in the world, you want to see first....the rest can wait.
I have found that I should have done these things when I was in my late 20s.
Traveling will help you to better enjoy your real life & may open career doors along the way.
Good luck, you old timer