If you have a tough time not "taking in" their criticism, there are ways to affect a more Teflon-like psychological defense. The key is to develop a strong sense of who you are as a person. Adolescent psychologist Dr. Sharon Bud says one way to cement a more confident sense of self is to engage in positive self-talk. Remind yourself often what your strengths are and concentrate on those. Actively work on improving in the areas in which you feel lacking. Sometimes acknowledging that you do have some areas to work on and then actually working on them is enough to give you a calming sense of power.

Dr. Budd says creative visualization may also help. Come up with an image of an ally you can picture when you feel attacked. This may be a supportive person already in your life--like your favorite aunt or that teacher that always looks out for you--or it may be someone you create from your own imagination. Either way, this technique is likely to help you feel less alone.