The notion that you have to throw/submit yourself in Aikido or get your wrist broken

Is a myth 99% of the time. The reality is that you can't apply the joint lock whatsoever on a person of similar build and strength if the person resists. You just get stuck. Believe me, I have challenged people on it, including instructors giving out the lecture, and others have too. They can't apply it to me and I can't apply it to them. Simple as that.

So where does this notion stem from that you have to cooperate? It's just not true.

With that in mind, how do you know where your level...

The notion that you have to throw/submit yourself in Aikido or get your wrist broken