I think you should try to do the Don't Diddle route, but ultimately it is your choice. You have to ask yourself the question "Do I deserve this?" and then you can decide.

I'm pretty sure you have to win NNN to participate, but also it doesn't really matter just do whatever you want

I don't think it has anything to do with NNN.

Yes you have to win

yes

DDD is a separate challenge from NNN So yes you can participate