to give in or collapse under pressure
unter Druck nachgeben oder zusammenbrechen (unter druck nachgeben oder zusammenbrechen)
"He refused to buckle under the stress of his new responsibilities."
"Er weigerte sich, unter dem Stress seiner neuen Verantwortlichkeiten nachzugeben." (Er weigert sich, unter dem Stress seiner neuen Verantwortlichkeiten **buckle under**.)
to use all of one’s strength or determination to achieve som...
to assume control or responsibility for something
to calmly guide yourself with inner talk during anxiety
to aim something at someone or something with force
to gradually develop into a more mature or confident person
to contact someone again to confirm or review something