When it comes to expressing a positive attitude about one's abilities or qualities, there are several synonyms that can be used instead of "am good for." Words like "capable," "competent," "proficient," and "skilled" all convey a sense of confidence in one's abilities. Other synonyms that can be used include "adept," "talented," "able," and "gifted." Each of these words carries its own connotations, but all of them communicate a level of competence and proficiency. When looking for alternatives to "am good for," it's helpful to consider the context of the statement and choose the synonym that best fits the situation and the tone you want to convey.