The phrase "brake one back" may not have an exact antonym, but there are several words that can be used in its place to convey the opposite meaning. For example, instead of slowing down or inhibiting progress, an individual may choose to accelerate, expedite, or facilitate a task or activity. Other antonyms include phrases such as "push forward," "drive ahead," and "advance quickly." Ultimately, the choice of antonym will depend on the context in which the phrase is used and the desired outcome. Regardless of the chosen word or phrase, it is important to keep in mind that sometimes it is necessary to slow down or take a break, and that pushing too hard can lead to burnout or mistakes.