I would first focus on overcoming your anxiety about your symptoms and illness. acceptance. that major step is the first and most important thing for peace of mind. I would then focus on any depression left. OCD is the last to worry about. trust me. You can also tweak your way of thinking...even if it's seemingly illogical...to something that will help you like the outcome of what's bothering you. ie: I know this brand of soap and thirty seconds of washing in this water, because I keep this sink clean, will kill and rub off all germs, because how this soap works is by forcing the bacteria left alive to lose their grip on my hands. but like I said, acceptance and depression first.