Songwriting

Question.
I'm having a problem where I'm only writing lyrics about the same two things over and over and can't break the mold.

They are both traumatic for me and I suffer from PTSD over one of them.
How do you break the mold and write lyrics that aren't

"FK YOU"
[Breakdown starts]

This is what my mind wants, It's therapeutic, I just think a lot of my lyrics are incredibly brutal for a metalcore/post-hardcore band.

(the example is incredibly mild vs what I've been working with lol)