Serious question: How far is too far when roleplaying and cosplaying as Alastor?

I don't know why, but I am obsessed with Alastor. Not just watching him, but being him, sounding like him. My therapist says it's probably nothing to be concerned about, that I'm a grown man who knows right from wrong, but anxiety go brrr... I've been practicing his on-screen mannerisms (both in the pilot and the main series), his voice. Even the little things like the way his smile can shift from full toothy grin to just a subtle, quiet smirk. Even that little foot-kicking thing he does when he's talking to Charlie just before they go to Cannibal Town. I am (diagnosed and medicated) autistic, but I've never been hyperfixated on something like this before. My normal hyperfixations are cats and farming... and I dunno... it feels scary, like someday I'll wake up and I won't be me anymore.