We don't have synonyms for psyched-up yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are psyched up.
(adj) :
(idiomatic, informal) In a state of heightened mental preparedness for a difficult or hazardous enterprise, or one where success is particularly sought.
(adj) :
(idiomatic, informal) In a state of heightened mental preparedness for a difficult or hazardous enterprise, or one where success is particularly sought.