Exactly this, Particularly if you need to world around you to do it too.
Growing up, play was limited to the friendship circle and garden, and we certainly didn't have adults acting as animals. We didn't have the Internet exacerbating our play and brainwashing young impressionable and vulnerable minds to believe this idiocity. I agree with so many comments here including needing to experience the real world, poorer countries and stop obsessing with who you are and start thinking about other people. Life is too short to just think about yourself and your identity too.
You describe dissociating, this is a trauma based reaction. I do feel you may have some underlying trauma that this is masking this Wisteria, and if not, then the Internet and this (what I can only describe as a cult mentality) has brainwashed you. The replies on here I can only imagine are probably from people older than you, including myself? Therefore we have seen the world before and after the social media craze. Social media has gone mad, and has taken in it's clutches the youth. We can see this as have watched it unravel, alarmingly and with huge concern.
I think the whole Therian world is absolutely ridiculous, one that should be left as innocent play in the garden for under 10's and not called Therianopathy but normal play, that doesn't involve the Internet and identities. Also, role play as children was intermingled with other play such as sport, dolls, toy cars, arts and crafts that didn't include making animal masks! Therians seem to adopt all play around being a therian and there lies the concern. A huge brainwashing identity that has striped other play from innocent children.