Each person is unique, and there is no “right” amount of happiness for anyone. You are an individual with your own strengths and challenges. If you visualize a scale from 1 to 10, with 1 being very sad and 10 being very happy, you might be a 2 or an 8 depending on the day. Your friend could be a 4 or a 7. There is not a line where you tip from sad to happy; it’s more about being a little more happy or a little more sad than you are now. If we talk about the pleasure of enjoying food, there is not a correct portion of food that fits everyone; it must be considered within your continuum. The amount of exercise and time with family or friends are the same. Find the level that is best for you.
Everything is moving up and down on a continuum that is relative to you. Nothing is strictly black and white or one-size-fits-all. So make decisions based on what is best for you. Not based on what someone else is doing. You will be eternally chasing happiness if you try to be like someone else. You will find your happiness when you embrace your uniqueness.