How to get rid of negative habits of the mind?

Gurudev Sri Sri - Good company. The real friend is one with whom you sit for some time, you talk negative and then you turn positive. A bad friend is one with whom you talk a little negative and the negativity becomes much bigger. So, first is good company, second is pranayama, Sudarshan Kriya and meditation and third is to cleanse the body. Sometimes, if your bowel movements are not good, if your intestine is hard, it affects the head also. Sometimes, you need to do some cleansing of the body as well. Cleanse the toxins or go on a diet. Ayurveda, Panchakarma - all these will help.