I think you should at the very least try to do less of it.  I've advised you this way before and you haven't listened but try joining RPs instead of GMing.  It's a lot easier.  If you still want to GM that's fine.  Pick a story you want to GM and develop it.  Not for a few hours.  Not for a day or two.  For weeks or months.  Write iterations of it.  Post it up in General Interest and see how folks respond.  Remember this is collaborative so you're not just writing for yourself and your interests you're writing to bring others in.  You need hooks.  You need formatting and presentation, maybe not for you if you just really don't care but for others.  They do care.  You might be able to overcome poor formatting and presentation with some absolutely divine writing, but the presentation really isn't that hard.

Google some images for settings you like.  Google Medieval Paintings or Fantasy Scenes or SciFi paintings or book covers.  You could get more specific and Google Star Trek/Star Wars/Warhammer/Jurassic Park/Game of Thrones art.  Get some images.

If you develop a setting with several different factions or world views or whatever that others can slot themselves into, or a setting with enough grounding to encourage people to want to come up with their own factions, while you are building rapport with users by posting in their stories then by the time those stories die out or finish or whatever you will have made some writing partner buddies and have a single well developed Interest Check and RP Starter.

This is much more likely to produce good results than typing out 50-100 Interest Checks a year.

These are ways to make the process easier.  If that still is too much than just fuck the whole GMing thing.  You don't need it to RP.  I barely ever GM.  Like maybe once or twice here.  Just join RPs, or if that's too stressful too or you get too bummed out by being ghosted just read them.  There's plenty to read and more every day.