Anxiety, social problems, depression, eating disorder etc, what should I do?

I suffer from anxiety and basically what's listed in the title, I've not told anyone not even my parents about my problems it's cause I'm too scared to tell them so im seeking advice from you all, I've been so damaged by peer pressure and these problems i've gave up on relationships and all that jazz, throughout my high school and college years it's been bout looks, I do have a decent amount of mates so that's really all that's keeping me going, I just really don't know want to do anymore. :L thanks for the feedback.
Anxiety, social problems, depression, eating disorder etc, what should I do?
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