Tā de rénshēng diē rù le zuìdīdiǎn, dàn hòulái chóngxīn zhènzuò.
His life hit rock bottom, but he later pulled himself back up.
Tips
usage
最低点 is used both literally (the lowest elevation, the minimum value on a graph) and figuratively (rock bottom in life or emotions). It parallels 最高点 (highest point/peak). In finance, it is common in phrases like 触及最低点 (to touch the lowest point).
