How do some people have such strong will power?

My sister has really strong will power. She's given up candy for Lent and hasn't had any yet. She runs 5 miles 5 times a week. She has good grades because she studies and does all of her homework. My will power isn't strong however. I've been trying to lose 15 pounds for a really long time now. I usually go 2 days of eating healthy and then I end up giving in and eating junk food. I also told myself I would go to the gym 3 days a week and then I end up not going and do something unproductive such as watching netflix. How do people do it?

Anonymous2016-02-20T15:26:59Z

You just do it. I'm like your sister, but I don't feel especially motivated or have any tricks. I want to look good and wanted to get good grades and whatever else, more than I wanted to eat junk and watch Netflix. You prioritize.

?2016-02-20T14:05:01Z

Believe in Yourself. Be your own motivation. Remember the goal. Remember why you gave up eating junk food in the first place. Remember that weight loss lasts longer than flavour. Good luck.

?2016-02-20T12:37:52Z

Believe in the power of your mind. That's it, we make choices all the time even when we don't realize it we are still making choices. So now just make a choice to do.............