What are some ways to rid of negative energy?

It’s that time of year, winter is almost done kicking our shins and punching our gut, and spring is on it’s way to pick us up and dust off the dirt on our knees. And I’m ready for some real, deep, life-altering change. I’m ready to cleanse my soul and become that happy person I was in the summer. But I’m afraid I’ve become more of a negative, sad, and selfish person than I’ve ever been. So I need the help of my fellow flutherites!
Hokey or not, I want suggestions.