Have you ever heard of a gratitude journal? It's a place where you record what you are grateful for in your life. It doesn't have to be anything dramatic. I add five things to my journal every night that I'm grateful for from that particular day. It helps me to go to sleep in a good mood which allows my subconscious to set me up for a good start to the next day.
Don't think you have anything to be grateful for?
Did you wake up in a nice warm bed after a good night's sleep? Do you live in a safe place with plenty of clean water to drink and healthy food to eat? Are you healthy and able to move your body the way you want to? Do you have a good job that gives you financial security? Do you have family and friends whom love you and who love you? You have plenty to be grateful for.