You say you wish to be fearless and tough as a weed - you already sound like a very brave survivor!
You may feel alone, but you have found a safe haven at Hive, a "sanctuary in the virtual world," where so many put up a fake persona of The Good Life. " .... some social media reflect a place full of illusions. People edit and exaggerate what they post on the internet, making it seems like their life is glistening. The sad part about this is that many choose to believe everything they see there and get intoxicated by this illusion."
Sounds like you're standing firm on that rock in the storm. Hang in there! And thank you for sharing your struggle. May you be surrounded by light and love and hope.