Then, what would you say about me? I'm as nihilistic as they come, and yet I feel no conflict, no existential dread, no need to reconcile the objective with the subjective.

I am not reconciling the objective with the subjective, but recognizing a way of talking and thinking that was never dependent on the objective to begin with.

I, for the record, dislike the phrase nothing really/truly matters because that in a way puts the silly idea of objective meaning above subjective preference

My entire point is to eliminate a way of thinking that insists that meaning is beyond subjective preferences and concerns.

But then again, I also don't like to limit myself by setting strict 'meanings' for myself.

Personally, I suspect you have put yourself in some kind of linguistic prison.