The phrase "am worthless" connotes feelings of low self-worth and negative self-perception. However, there are several synonyms that can help to convey these emotions in a different context. Some alternatives to this phrase include "feel incompetent," "believe I have no value," or "think I am useless." Each of these phrases can convey a similar sentiment of self-doubt and low self-esteem. However, it is important to note that these phrases are not meant to be permanent descriptions of oneself and that seeking help from a mental health professional or trusted friend or family member can often assist in building a more positive self-image.