Gandhi paradox

Gandhi paradox is a phenomenon referring to nuclear Gandhi from Sid Meier's Civilization. This paradox can be described as Gandhi who is so peaceful as he reaches a negative value of non-aggressivity and starts attacking everyone.
In other words, something is so good/bad that it reaches the point where it turns opposite.

My life is like Gandhi paradox. The older I get as a child, the happier I was. But when I reached the top I suddenly turned into depressed sh*t.