Resisting the resist to change

Most of a time i do a small mistake and then later i say to myself that will be the last time and never again. Since i am accustomed with my habits, i do a small mistakes, later regrets the same. This is a common scenario in my life. Every time i try to change, it will last long for few days & then back to normal, though i am complacent with some of my "good" habits. But still if feel i can improve myself more than what i am now. As a part of this process i want to write blogs regularly*. Listing few habits i want to change:- 1) One of my best friends say that i react lately(emotional feelings) 2) Obsession mania (If something goes wrong i think.. think..about that) [ It is past dude..learn and go ahead] Wish me all the best.. :) *provided time is available