The phrase "dost one's thing" can be understood as doing what makes you happy or pursuing your interests. In the context of antonyms, some words that can be used to express the opposite of this phrase are "conform," "restrain," "comply" or "subdue." These words point out to the idea of following conventions, restricting one's behavior or giving up personal preferences for the sake of social norms. The opposite of doing one's thing could also be described as "suffocate," "suppress," "constrain," and "stifle," which implies a sense of limiting one's freedom and creativity. Overall, the antonyms of "dost one's thing" emphasize conformity and limitation.