Mindblockage?
there's this
Site, Its a random generator site. It could help your brain start thinking again.
Failing that, you could try some mental drain cleaner..
“She'd become a governess. It was one of the few jobs a known lady could do. And she'd taken to it well. She'd sworn that if she did indeed ever find herself dancing on rooftops with chimney sweeps she'd beat herself to death with her own umbrella.”
― Hogfather