Accecpting yourself : self image

I have had this problem myself.
IMO, There are two things that can really benefit you.

1) Treat it like a bad habit, and try to change it. Take a little time everyday or every other day where you investigate yourself. Find out what yur triggers are, find out when and how you do it. Really get knowledge about your own situation and analyze it. Keep a journal dedicated to this. As you get more knowledge about it, you will know how to change to habit into to something positive for you.

2) Meditate. Meditation can help you release any stuck emotions. I highly recommend this.

 

I have myself related this problem to this pathway in my brain: Trigger --> Fear (unconscious) --> Anger (semi-conscious) --> Sorrow (doubt or feeling inadequate) or Hate (anger towards others, myself)
After realising this, I have realized multiple patterns of reacting to feelings of fear. I am unconsciously avoiding the expression of fear and my subconscious will go to great lengths to ensure that I don't feel it.

I have a theory that once I learn to accept and express my fears (And all my emotions) properly, then most of my emotional problems will resolve.