At least on FB you can unfriend or block someone and they aren’t notified and don’t even suspect anything until they realize they haven’t seen a post from you in 3 months. If you block someone they can’t see your presence on FB at all, nothing you comment on other posts nothing of yours that’s shared. They can’t even see that you have a fb page.
Also of course you cannot see what they post. In this situation that is healthy. It lets you make a clean break. If there is anyone else at the barn you figure as a real stooge to trainer and drama enabler, block them too.
I don’t know about the other social media platforms.
I would suggest getting your family members ahead of time to agree to block trainer if there is any chance they will be posting about you.
Take your gear home. Have everyone in your family block the trainer and any of trainer’s stooges. Then the person who writes the cheques to the barn should call and say you are moving on. Don’t go back to the barn.
And when your frenemies from the barn try to get you embroiled in omg she’s so mad at you, say: I’ve left that behind.
That part will take real self control. It’s very hard not to be curious and sometimes we are almost gratified by how much fuss was caused by us leaving. But really really avoid getting updates.
After 3 months with no updates you won’t care. But if you keep getting updates then it keeps it all fresh in your life.
Just let go and walk away.