When we limit ourselves, we prevent ourselves from exploring new opportunities and experiences. However, sometimes limiting oneself is necessary for personal growth and development. Some synonyms for "limit oneself" include constrain oneself, restrict oneself, hold oneself back, and self-impose limits. All of these phrases convey a sense of self-discipline and self-control. While limiting oneself can be beneficial in certain situations, it's important not to let fear or self-doubt hold us back from chasing our dreams and ambitions. Instead of limiting ourselves, we should strive to push beyond our boundaries and embrace new challenges.