Yeah, 50 (two years ago for me) was definitely different from 30 or 40.
Here’s when I felt like I’d been around a while: I was computing how many days I’d been working for the company I work for (for seniority purposes). I kept getting a number 8 days different from my employer. I’d been counting 365 days in a year. Turns out I wasn’t counting the EIGHT leap days since I’ve been there. Jesus.
Hitting 50 really made me sit down and ask myself what I want out of the rest of my life and what I’m going to do about it. Although it took another couple years to really come to me. Turns out it isn’t a bucket list type of deal. Heck, I don’t really even feel the need to see the world anymore. I just want to do what I’m doing as long as possible. Spend time with the wife and kid, get in as many rounds of golf, softball games, ping pong games, days at the lake, r/c plane flights, body surfing waves, etc. as I can while I can. Then, if my body can’t take that stuff anymore, I guess I’ll replace the more strenuous hobbies with less strenuous ones.