Practicing gratitude is a very helpful way to keep you happy and content. There's got to be something in your life you don't take for granted. Having gratitude will make you feel better and help you overcome adversity in such an amazing way. To practice gratitude you can write down what you are thankful for or text it to yourself. Whenever you feel down you can look at the list of this your grateful for and it will lift up your spirits. Gratitude is a really great thing. It may take time if you're pessimistic, but after awhile you will see a great change. Definitely try it out.