I think you're right, i was pretty bored with life and always on a mission like AlasdairMc. I travelled the world for 5yrs but got bored with that. Then when i was 33 yrs old and although never wanting kids EVER! my then girlfriend found she was pregnant.
This stopped me in my tracks and i was pissed off, looking back it was the best thing that could have happened because it stopped me being a selfish f%ck and i had to grow up.
We split up and have since remarried but i'm unbelievably happy and chilled. Maybe like me you're crap single, you just need the right partner, took me 40 yrs to find her though….