Only recently. Beforehand I figured I would have to start over eventually anyways and usually between using different characters, restrictions, outcome randomness, and strategy change ups were enough variation for me.
I learned two things in the process:
1) If a character I care about ends up falling, my playing skill falls drastically and more people end up getting killed.
2) I seem to be playing more carelessly in the first place. I can't understand why because the consequences are supposedly harsher, but I guess before a perfectionism drive would kick in and make me pay more attention.
Anyways, I still want to keep going to try and kick these bad habits