Irrational and Rational thoughts battling it out

First of all, hello! I'm new here!

I've struggled with GAD in my daily life since the onset of it at age 14. When I was younger, I'd describe the irrational and rational thoughts as a "child and parent," respectively. Recently, I've been noticing how the "parent" has gotten louder against the "child's" thoughts. It's gotten to the point where I can't ignore the parent anymore, but the child seems to be just as loud, if not louder.

Lemme give an example- last week in my therapy session, I was talking about this upcoming situation that was weighing on my mind and causing a lot of stress and pain. The specific thing at the center of it all was something, as I told my therapist, that I knew and could easily say I shouldn't take personally and shouldn't be so stressed about, but even with that knowledge and how easily I could say that, I couldn't let go of it. I couldn't help but lose sleep and want to scream over it.

It's as if the parent and child have gotten physical after all these years and now they're at each other's throats in my head. Is this a common part of recovery and learning to manage your GAD- feeling like the thoughts are trying to fight for the right to be believed?

I don't know what's common but I do know that my anxiety has gotten worse over the years to where now yes, I feel a compulsion to somehow physically express it, with screaming being one thing that comes to mind.