Hello fellow oldie
I'm in a similar position. I got (late) into drawing during my vocational training (media design related) and loved it, so that I actually tried to get into an art university after those two years of vocational training, but I... was too bad
So I gave it up and just recently came back to drawing, now that I have a unrelated degree and a unrelated job. So you're not alone!
If you got all art school terms, you can watch the video about learning from term 7 first. Marc speaks about how learning isn't related to age and other important things
Your feet are looking awesome and very advanced, so stop listening to those thoughts!