Page 12, the self-loathing and imposter syndrome that comes from "acting a character" aka "masking" is the thing that makes me nervous for streamers.
I really think that once you get to a point where most people would consider you a "streamer" instead of "a person who streams", you should start meeting with a therapist for at least preventative purposes. Then again... everyone's just a little bit off-kilter in some ways or another so maybe everyone should be meeting with a therapist every once in a while.