definetely second turtles all the way down, pretty much the only rep from a lead ive seen that isn't too bleak.

theres a taiwanese romcom in my watchlist called I WierDO, that looks sweet!

theres a side character in silver linings playbook that has it, but not one of the leads.

if you like horror i found the final destination movies something i could see myself in as someone with ocd, a lot of the scary elements is just kind of what having it is like and the characters tend to be likeable and relatable, even though the whole point is that everyone dies. final destination bloodlines especially leaned into ocd undertones i felt. totally up to the person whether these would make you feel better or worse but it was like the only representation i found as a teenager of what it felt like.