Your "when" bothers me. It's your life and you're the only one in it? I'm a very slow learner of some things and other things, I don't understand why other people have trouble with them since I don't But I kind of gave up on the lock-step everyone move from grade-to-grade together along with a few other of my family-of-origin barn raising mandates when I got to my 40s I think. It did take me a longish time to "get it", I was 41 before I got studying/school and could succeed there at will.