There's something I call 'the mirror' that determines how a person feels about themself. When you are critical, judgemental and condescending towards others, you will also have low SELF esteem. Get off of other people's cases and you will get off your own (you call them "slutty").
How many DECISIONS about people or situations do you make every day? It must be VERY stressful to be a 'GREAT DECIDER'.