24??? Ah the good days.
I am 38 and I'm a 4th year dental student... in slovakia lol. I was so hell bent on doing this that I packed up and did it abroad. Don't be disheartened by your current situation, in the grand scheme of things you're still very young and could even take the same route I did if you really want this. Happy to provide more info if you need it, but don't beat yourself up, seriously, you got this!
Side note, I am due to graduate in 2027, so I will be 40 when I am done, which is wild.