How do you handle being upset about something online?

like either a dumbass posting stupid shit, unfair bans, idiotic arguments, etc etc. i feel so incredibly stupid letting it affect me at all, but then also there's real feelings mixed in there because it's a real argument i give a shit about to some degree. so it's this odd double crossing where i know it's stupid but i process it as being real.

bonus points for not answering 'go outside drink water read a book' etc etc