Misophonia & Noise canceling headphones

Hi, I suffer from misophonia and currently wear on ear wireless headphones with white noise to block out sounds. I have 3 pairs which have at least 12h battery life to ensure that I have one available at all times + a spare

I recently got told that I should watch the show A-Typical. I'm not sure why. So far I've found the TV show distressing. But anyway; I noticed that the main character with autism has noise canceling headphone and wondered if anyone has any experience with some that they could recommend.

Reading about noise canceling, In my mind I'm imagine something that negates all sounds and give you total silence. As I sometimes require to listen to sounds very loud to block out some noise. This would be far safer for me as I already have tinnitus.

This this is true on how they actually work. Can someone recommend some headphones which do this? I like my current ones because I can sleep with them on