If you surround yourself with people who support your upward aim, they will not tolerate your cynicism and destructiveness. They will instead enCourage you when you do good for yourself and others and punish you carefully when you do not. This will help bolster your resolve to do what you should do, in the most appropriate and careful manner.
People who are not aiming up will do the opposite. They will offer a former smoker a cigarette and a former alcoholic a beer. They will become jealous when you succeed, or do something pristine. They will withdraw their presence or Support, or actively punish you for it. They will over-ride your accomplishment with a past action, real or imaginary, of their own. Maybe they are trying to test you, to see if your resolve is real, to see if you are genuine. But mostly they are dragging you down because your new improvements cast their faults in an even dimmer light.