Be in high/low spirits - Idioms by The Free Dictionary
be in high/low spirits
be in high spirits
To be happy and upbeat. Ellen's been in high spirits ever since she found out she got the lead in the school play.
be in low spirits
To be unhappy or sad. Ellen's been in low spirits ever since she found out she didn't get the lead in the school play.
be in high/low ˈspirits (also in good/poor ˈspirits) be happy and cheerful/sad and miserable: John was in rather low spirits all evening. ▶ ˌhigh-ˈspirited, ˌlow-ˈspirited adj.: high-spirited children