I love that scene where Anna is talking to Michael about self control. His "yes" and "nooooooo" crack me up. And I think the definition she gives for self control is actually a good one. Instant obedience to do what is right. Like, I want a donut. But I know donuts are bad so I don't have one. If I instantly listen to that internal conscience, without acting first contrary to it and having to be corrected externally, I'm instantly obedient to rightness, aka I've shown self control. Obedience to do what is right is very different than obedience to an outside authority figure.
(Aside: I do, of course, constantly disobey re: donuts. To say I lack self control when it comes to donuts is akin to saying the Duggars have a few kids. Vaaaast understatement. TMish Anna.)