There are several things you must do to achieve a lifestyle change. First, to me it seems that you haven't found something you enjoy doing. You need to find an activity you like that will give you a good workout. If you don't like what you are doing, you will not stick with that activity. Give it some serious thought - find something to do that you can truly say you enjoy - dancing, walking, yoga etc.
You also have to force yourself in the beginning. Making the exercise schedules are great, but they are ultimately useless if you can't stick to them. So the first two weeks you will have to use your willpower to force yourself. Perhaps you can try to exercise with a friend daily. Think of it as time for you and your friend to catch up on things. You will both depend on each other and won't want to disappoint one another, right? Or maybe try on some clothes you like that are tight. Seeing how you look in it everyday may inspire you to become active right away. Try doing something of this sort. Eventually, if you can start working out daily for two weeks to a month it may start to become habit. It will feel weird not to exercise.