persistant persecution

I have a persistant persecution complex what treatment helps?  I notice that it cycles :
I am OK - buildup - I feel persecuted, I am certain that I am right - confront- realize I had an episode - feel guilt - restart cycle.

In the part of the cycle, where I am confronting someone, I am certain that I am correct, that they were against me and I get a dry mouth, feel confused and afraid.  My defense of myself is very weak, because I get so upset and confused.
I tell myself that I am not getting justice and falsely agree to drop it.  Afterwards I feel betrayed and angery.  I think about what I should have said.  I then seek out someone else to convince that I am right.

I need help, because I lose jobs, friends and colleages,  due to my behavior.
I lose credibility to the point that I my opinion is dismissed, even when I am in the part of the cycle where I am not feeling persecuted.  Then I feel that I do not matter.

Also, I seek to be great and dapple in many artistic activities, including writing, but that too is a cycle.

I am very forgetful.  When I look for the lost item, I often overlook it.  I forget the sequence of how to do things and find myself having to back up in order to make the needed correction.  Many times, I am given verbal directions and can not either take it all in and/or forget to do it.

At fifty-eight, I have to do something or I will lose my job at WalMart.  

Can you steer me to treatment that has a good track record of success?  I realize that I have to change me, but I find that I need guidence.  So many times, I have tought that I have handled this and I haven't.

Richard