You are not influencing the victory of your favorite team, you will not benefit financially, but you will benefit within your body. Only sports and its encouragement give you the illusion of superiority, that you have chosen the best team and the best player, and in the event of a loss, your body will secrete substances that disturb your mood and lead to nervousness.
It's like making sex, your body is releasing hormones, it's just a temporary craving for pleasure.