"Steeling oneself" is a phrase used to describe the act of preparing oneself mentally or emotionally for a difficult situation. Some alternative synonyms for this phrase include "bracing oneself," "girding oneself," "fortifying oneself," "preparing oneself," and "getting ready." Each of these phrases implies a sense of mental or emotional preparation for a challenging event or situation, and can be used interchangeably with "steeling oneself." Whether it's preparing for a tough conversation, bracing for bad news, or gearing up for a challenging task, these synonyms can help add variety and nuance to your writing.