If people are dropping away from you as you improve yourself, they were never meant to be there in the first place. People will come and go with the tides of life, the ones who really matter will be there through thick and thin. With every closing door another one opens. Fresh opportunities and outlooks present themselves. When you change your ways and attitudes the people who you thought were your friends may have just been around you for a particular purpose and now that purpose or thing that you had that they needed, is now gone, they will be to. But with new outlooks and goals, new people will come to you. Maybe greater people. Embrace the change, let life flow like water.