• if H is true, then the overall quality of a life depends entirely on the amount of happiness and unhappiness it contains
• the overall quality of life depends on the least one other factor, wheter one's life reflects an upward or downward trajectory
• therefore H is false

I'm going to encourage you a little, to help you get started. :)

I am going to encourage you a little, to help you get started :)
Since you looked us up and read the site enthousiastically, I would like to offer you a big discount.