Catoblepas

Unless anyone recognizes the specific sounds being used it’s probably not anything that can be answered definitively without asking whoever did sound design for the episode, or maybe seeing the script.

This would likely be true even if it was a real cartoon, for the most part they draw from the sound effects library of whatever studio is working on the project.

Absolutely none of the therapy techniques were truly effective for me until I was on the right medication. I’m not saying this is the case for you, but if you have honestly been struggling with everything you’ve tried, that’s not you not being good enough or trying hard enough. It’s just a sign you might need meds on top of it.