The way I see it, is a majority of people who fail with their fitness goal or dream is because they do too much, too fast. They decide one day to change in a good way. They do that by drastically changing something/everything. Make small changes. If you drink 4 sodas a day aim for 2, if you drink large amounts of alcohol try changing it from 7 days a week to 4 days a week to start. Then as the weeks go on, lower the intake of whatever it is. If you stop all of it in one day the body does not react well as its used to having it and therefore it has an opposite effect of what you would like.
Earning a healthy body is not done overnight therefore your choices should not be put into action overnight. Take it slow. Even if it doesn't seem like much, it helps you and do not give up! Every little thing helps. Hell, getting up and walking around your living room every commercial break helps and that's a small thing to do.
Fitness does not require drastic changes overnight. It requires changes over months and months. As your body shows changes over the months so should your habits.
Keep that in mind and I hope you stick to your goal.
