Do you ever feel that any kind or ambition you may possess is totally futile due to your age? Or simply a general, overwhelming sense of it being "too late"?
I'd say a mixture of both. The only real ambition I have now is trying to get as high in the umpire ranks as I can but like you said it feels a bit too late. The saving grace there is that a lot of the umpire community is made up of retirees so it doesn't make my desires any less insane. It's also looked on by, well, all of my family as something that's totally immature. I'm also being pressured by my minimum wage job to take as few games as possible, but I just can't. So when speaking about a career I'm in the "ambition is just completely futile" camp.
Then we get into relationships and friendships. Here I feel that overwhelming sense of "too late". As soon as my parents divorced at 10 I became completely directionless and withdrawn. Everyone I tried making friends with had that air of "this would be acceptable 5 years ago". Like I never was forced to spend time outside or sent to summer camp to develop those interpersonal skills because my mom was completely focused on her own career to the detriment of my life, and my dad was trying to be a "party dad" because of the limited time my brother and I were given with him. I've never forgiven my mom for the divorce because I have become 100% convinced that I'm in order to further her career to the point where she was a university professor, she completely forgot about actually raising us. If she wasn't so self-absorbed and narcissistic I would have a much better life, and I wouldn't be on several SSRIs for the rest of my life. The only person who came close to giving me some semblance of normal was my dad's girlfriend of about 7 years, up until he cheated on her and crashed her world in IIRC 2013. I almost killed the fucker, no lie. But before that I never was given a sit-down to contemplate my life goals (if I could go back in time I'd convince my 20 year old self to go into trade school since my dad was willing to help pay for that or a small commuter school. I took the latter). Another consequence of not having a more social upbringing is that I never figured out how to start talking to ANYONE. I tried a girlfriend senior year of high school. And the future people that tried showing me kindness of any sort in school made me borderline stalk them (I remember a college "friend" who went into stand-up comedy had me wanting to support him by showing up at ALL his shows. NOT HEALTHY). All of this comes too late for me to do anything about it I feel.