I think everyone has at one time or many times asked themselves "How can I be happy?", "How can I be happy with myself?", "Why can't I be happy? What's the point of running around and exerting so much effort in life if one isn't happy?
Steve Jobs Quote -- “Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. The only way to do great work is to love what you do.