Self Harm and Depression. Are enough?

I'm currently under medication for depression. I was on escipra earlier then I used cipralex as well along with restyl in the beginning which was later replaced by melzap. I've been on several antipsychotic drugs including fluanxol, lobazam, mirtaz etc. Currently I'm on mirtaz and melzap. I have issues with my sleep as well. I really fear a lot especially when I sleep even the slightest of sounds make me shiver, my body starts to sweat, heart starts thumping. I become restless for quite sometime. Even the sound of msg tone on mobile kind of wakes me up. And seriously I'm very distrubed with these issues. I'm currently undertaking treatment for the same and was asked to take melzap 0.5mg  for the same every night. I also tend to make minor cuts on my body just to relive some stress, I seriously cannot bear the mental pain so these minor cuts at times divert my mind to that Phsycial pain so it kind of distracts my mental agony at times. Melzap and mirtaz are enough ??