Well...I don't know as I can really be of any help with regard to this.

But I can certainly relate. I've deleted all of my internet accounts previously... including PsychCentral!

Most of what I deleted though were not social media accounts. (I've never been on Facebook or Twitter or anything such as that.)

A while after I did it, though, I began to miss being on line. And, when I decided to return, I decided PsychCentral was where I wanted to be. I also have a YouTube channel. But I only use it as a place to access music videos I enjoy listening to... primarily while I'm replying to posts here on PC.
I do still go through periods where I just begin to feel like I wish I could just be rid of the whole internet thing.

But then I find myself feeling the same way about everything in my life. For me it is a kind of "social suicide", so to speak. I am married. So I'm not completely alone. But beyond that I am pretty-much completely solitary... by choice... no acquaintances, no friends, & no extended family. I just prefer to keep to myself. One thing I don't have is the urge to look up, or be found by, anyone from my past.

Anyway... I hope that, in deleting all of your social media accounts you find the inner peace you seek.