to become weary of something
I am dead tired―dog-tired―completely done up―ready to drop―reduced to pulp.
I am reduced to pulp―ready to drop with fatigue.
疲れきった
be (all) tuckered out
to be tired and weak
slaphappy with exhaustion
to collapse with exhaustion
でも疲れた
But I'm tired.
I'm done up.
I am tired out―done up―exhausted.