Pathophysiology? I don't even know what that is

Don't fret the B-... School is really hard for us ADDer's. You should see my educational train wreckords

I've got like 170 hours and all I have to show for it is an associates degree.
It sounds to me like you have your head on straight. I wish I had realized how my impulse to have fun and study later was a bad idea. It took me quite a while to learn that I needed to force myself to stay away from places where I'd make bad choices.
Don't feel like a grandma for making a smart choice.
Good for you!