One of the songs that I find catchy is "I want to be a millionare". Not only is it catchy but it also resonates with what I wish sometimes, that I would have more money to buy things and to feel safe about the future. As a child or an adolescent, you may not wish so much for money, but you may wish so much to be as popular or as "beautiful" as some other peers in school. This wish may consume you so much that you would do anything to fit in, and be distraught when you don't fit in. I want to warn you about being consumed by these things.
Those things you wish for- being as pretty or as popular, does not give you the things you need deep inside. You may think it does but it will just disappoint you. One day you will long for somebody to love you for who you are. You may have all the money or beauty in the world but it does not necessarily get you that unconditional love. People could be fickle, sometimes they hang out with you when things are going well, but when bad things happen- you don't satisfy them or you become deformed, they will leave you. Nothing in this world is guaranteed to last through the good times and the bad times. God blesses us with people and things and it is to him we should be thankful. However, they are not guaranteed to last. We should not be running around trying to fill those deep needs, but trust God to provide for those deep needs.
Another danger of being obsessed with popularity or "beauty", is it disengages us with life. That obsession is like a drug, you could become fixated on one thing, obtaining that drug so you can get a certain feeling back, and abandoning other responsibilities towards friends and family. Let me explain. God made humans to take care of creation, to join God in making this world a better place. This is done through developing our minds and bodies (reading and exercise), cleaning your environment, helping others, etc. Laziness or sloth, as the church of old called it, is a sin against God and a breeding ground for more sin. Just as God is involved in his creation, holding it together, we shold also be involved in his creation. So my plea to you is to look at outside yourself, think of ways you could love God and people better, instead of being fixated on fitting in or being happy. I know it is hard, but know that living in a way that God desires- being just, merciful, and humble, is what will bring you real happiness in the long run. It is for your own good.