The first step is the hardest. Typically people need some type of life/environment change in order to prod them into additional changes. Moving, getting a new job, throwing away your TV :) might be just the things to facilitate a change.
Unfortunately, friends often get in the way of that change. Few people do it on purpose, but if you suddenly find willpower your friends may feel bad about themselves and then try to pull you back down. You don't need to dump all your friends, but there is certainly value in evaluating each relationship and making sure it is positive and healthy. Some people you may decide not to see again (hopefully not), and others you simply decide to spend less time with. The saying I like to use is you are the average of the 5 people closest to you.
Unfortunately, friends often get in the way of that change. Few people do it on purpose, but if you suddenly find willpower your friends may feel bad about themselves and then try to pull you back down. You don't need to dump all your friends, but there is certainly value in evaluating each relationship and making sure it is positive and healthy. Some people you may decide not to see again (hopefully not), and others you simply decide to spend less time with. The saying I like to use is you are the average of the 5 people closest to you.