The phrase "more do-or-die" is often used to describe a situation where decisive action is necessary, and failure is not an option. Synonyms for this phrase include "critical," "urgent," "crucial," and "vital." Other similar expressions include "make or break," "sink or swim," and "now or never." These types of situations often require a high level of focus, determination, and courage to succeed. Whatever the phrase used, the sentiment is the same - the situation requires immediate and decisive action, and failure is not an option. In such cases, a person must take responsibility for their actions and do what they can to achieve their goals.