In this world of problems no one has a perfect problem free life, every person is going through some sort of problems. If you see a happy face then also there are some pain hidden inside those faces and they might be facing bigger problems than you. So you are not the one who is going through problems.
For every problems there are two consequences either you can do something to solve that problem or you can’t do anything for their solution. If you can do something then there is nothing to worry and if you can’t do anything them there is no point in worrying. Worrying for a problem won’t solve the problem so worry is just worthless. It also harms the body and disturbs us mentally. So worrying is just waste of energy and mental stability. So guys do not worry and live life happily.