The phrase "going for it" means to give something your all or to take a risk and pursue something with determination. There are several synonyms for this phrase, including "taking the plunge," "seizing the day," "embracing the challenge," "taking a leap of faith," "daring to dream," "chasing after the goal," "pushing the limits," "striving for success," "going all in," "embracing the unknown," "stepping out of your comfort zone," "grabbing the opportunity," and "trying your luck." No matter which synonym you choose, the underlying message is to take a chance, follow your dreams, and believe in yourself.