The pill vs. the ring

Kristen
I've been looking into additional forms of birth control, so to not only rely on condoms. I was on the pill (a form of loestrin) for about a year about 3-4 years ago, but stopped because it left me feeling so tired and depressed. 
My question now is whether to try a pill again, or possible the nuvaring option. Has anyone tried both and can give me some insight to side effects of each?