Help with self esteem?

So I've suffered from awful anxiety and panic attacks for years..I have awful.self esteem and think everyone hates me and have pushed friends away by making excuses not to go out. My question is can this effect evrything in my life. Of I think I'm being happy, do.i come across as sad? And if I start... show more So I've suffered from awful anxiety and panic attacks for years..I have awful.self esteem and think everyone hates me and have pushed friends away by making excuses not to go out. My question is can this effect evrything in my life. Of I think I'm being happy, do.i come across as sad? And if I start thinking positively, will things change?
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