Suggest Treatment For Severe Anxiety

One doctor has diagnosed me that I am having anxiety disorder in the year 2008. Few years after, my uncle has committed an accident, he always talk me his health problem regarding brain problem. On June 2013, suddenly I feel that I am going to be crazy; I will lose my memory suddenly due to anxiety disorder because I have anxiety disorder. My chest upset suddenly and I cannot think clear. My thought could not be controlled. I have consult one doctor, he prescribe paradise CR 12.5mg. From that time I am taking it. I think that I have improved. On October 2013, I think my vision has been changed but I cannot explain. I think what I have seen is not normal. I have consulted to eye care center and I have changed power lenses again and again but I am not satisfied till now. By the way, my previous doctor has decreased the doses of antidepressant. Now, I am taking half tab of paxidep 12.5 mg. At present, I think my mind is not clear and bored always and I am not satisfied with my vision and some eye floaters are there. Because of these symptoms I feel I am going to be crazy again. And also, it thinks this is due to antidepressant, I want to stop my antidepressant.

Please, kindly guide me my problem and please, tell me exactly what the problem is and what to do.