i read in one of your other posts you are not Muslim, but i will none-the-less advice you to accept qadr (fate). whats done is done and that cannot ever be changed (once you realize this, life gets easier) so the the next step to take, is to work around your problems.
you need to be as rational as you can and always try to strike a balance. extremism on both ends of the spectrum isn't good. there is such things as over thinking/over doing things, but do you best to avoid this by implementing what is in your scope of capability....as long as you have taken the proper precautions in avoiding harm (or whatever it is you want to avoid), then try not worry about the rest-it does nothing except cause heartache and needless worry.
of course it is natural to fear something/someone once we have encountered a bad experience with them, but if you nearly choke of food, are you going to stop eating?
know as well, that once you step into that little realm of unnecessary worry and start revolving your life around irrationality, it is a hard cycle to break. you dont realize it yet, but say you did stop doing things that you had a bad experience with, eventually your mind and your psychology towards the way you see and view things will take a turn for the worst (even if unrelated). so its best to deal with your hurdles as best as you can, but within the scope of your capability. so in this case if you fear going to the mosque, maybe next time go to the mosque at a time you think you wont get harassed...continue to do this until you feel that feel of confidence has been resorted. and this method applies to other aspects of your life that you feel that your OCD will affect it.
free yourself from paranoid thoughts and give your heart/soul a break. this running away from everything is just a temporary refuge for deeper issues that you dont give yourself a chance to heal/get resolved. once you resolve those issues and get out of your little shell, you will feel more strong and confident. do yourself a favor and dont runaway but face the music...give yourself a fighting chance...that the least you can do.
What should i do? My biggest fear is myself,i`m scared of myself,i`m like the hulk one mintue i`m relaxed,and casual etc, the next i`m freaking going crazy
you know when the best time to relax is? when you are feeling stressed (and likewise the best time to work is when you are feeling lazy) you dont need relaxation more than you need it at that time of worry so instead of causing more worry to yourself, counter your worry with relaxation.
if you get over stressed, getting more worried will only make matters worse as it causes one not to think clearly. think about it-what is your stress and worry doing to you? has it been helping? have you achived anything or gotten anywhere by getting worried needlessly.
its all about mental power and in a situation like this, its time to kick out that irrational thinking and start kicking in the rational one.
analyze what it causing you think like this and think of ways to counter-act them.