Of course, a lot of people will disagree with this approach
There is not a single person here who is going to talk you out of leaving lmao, whether you stay or go affects no one but you. That being said, you’re a teen and you’re choosing to leave a social media platform due to mental health reasons. That’s quite far from being a bad thing. You’re doing what’s best for you and that’s good shit. You’ve matured further than you think.
Every Lemmy account will have a Delete Account option located at the bottom of the main page of your settings, not sure if it’s automated or if an admin has to go in to clear em out manually, but trigger it, log out and you’re set!
I used to in the past (back when it was much more common to peruse /b/ and have kiddie porn slapped right in your eyeballs at a moment’s notice…not that its probably changed much over the years lol). Now-a-days I just use it for the torrent board since I’m a data hoarder and they throw up the occasional interesting collection of stuff.