Be happy and be contented. Happiness is a choice. You're going to be happy if your contented for what you have. Being contented and being happy is a way of being positive. Be contented for those thing that god gives you be happy  and be proud that he gives it to you, because  god gives that to you for a reason. What reason? We still don't know but someday you'll know it but i assure you its precious and meant only for you. Be happy even though theirs a lot of problems, trials and challenges were going to meet, always remember that  God  will always support you. Being happy is something that you're free to do and unlimited, no one will judge you, they'll just support you. So stop being sad. Just smile.