Never say never Everything is achievable when the mind is ready
It's only too late when you're dead. I often hear people in their 30s 40s and 50s complaining that it's too late for them. Too late to learn a new hobby, skill, make life changes etc.. No it's not too late!
Stop looking at that skater kid in envy wishing you learnt to skate as a kid. Go out there and learn. Or that female with hard rock abs and think, 'that bitch' while you're scoffing down on your Big Mac. Get off your ass, move, eat more veggies. You want that degree/phd you kept putting off for 20 years? Don't waste more time. Fill out the application form.
Yeah I know that it's easier said than done. But each day you live, is a day that someone else didn't get.