After all is said and done, doing it for 3 days and then quitting won't help in any way. So, draw a plan and stick with it until the very end. Commitment phobia due to pain or time will not help you in achieving what you want. When you want something, forget the odds and go for it. Give it your all, and it will be yours one day. To see a change in us, we need to be willing to change.