to make a mistake; to spoil something
einen Fehler machen; etwas verderben (einen Fehler machen; etwas verderben)
"I really messed up my presentation yesterday."
"Ich habe wirklich meine Präsentation gestern vermasselt." (Ich habe wirklich meine Präsentation gestern vermasselt.)
to decide which tasks or goals are most important
to gain self-assurance by learning from past events
to support or strengthen the economy during difficult times
to fall asleep suddenly from exhaustion
to start something without using anything that already exist...
to be extremely angry