The happiest person alive is the luckiest person. Even if they haven't eaten for two days, or ever slept on a soft bed. Even if they have never seen the ocean, or walked on soft sand. Even if they do not recognise the letters that could help them record their beautiful thoughts. Funnily enough, happiness and contentment depend on each other - If you feel like you are the luckiest person in the world, you will feel like no one can be happier than you. Also, the happiest person alive is the luckiest person.
My personal experience tells me that I am the happiest when I turn to my Creator. When I surrender myself completely, feeling insignificant compared to his vast world, yet, feeling safe, because I am completely sure He will take care of me. I can feel my life fall apart - can feel my happiness tear away - when I go further and further from Him. When you believe, mistakes aren't what push you away. Mistakes give you a chance to turn back towards Him, which brings you closer. But, when you deliberately stay away, you push yourself away from Him faster than anything. The void inside you becomes greater and greater, until there is nothing humane in your heart. Until your essence lacks even scrapes of emotion or intellect.
Deep down, you know that all the fake glamour that you smear in, all the attempts of smothering the emptiness are temporary. Superheros don't exist. Lust doesn't last. Beating hearts will stop, eventually. And you wonder why your brain refuses to cooperate with your vulnerable heart.