I had started the nuvaring 4 years ago and had loved it! I had no...

I had started the nuvaring 4 years ago and had loved it! I had no side effects except tender, larger breasts. I am a natural 36 D so it is a pain for me to go up to a 36 DD. I stopped taking the nuvaring a year ago since I was not in a serious relationship anymore and I wanted to give my body a break from hormones. I just started nuvaring again almost 2 weeks ago. I find myself crying for no reason. I am moodier than I usually am. I find myself crying then laughing then being frustrated. I find myself not motivated to do anything but watch tv. As I do so, I find my thoughts wandering to pulling a trigger to my head. I have no stress or worries in my life, why would I feel this way? I just don't understand why nuvaring used to be the best birth control and now it is a nightmare.