Help control anxiety and worthlessness.

Hello, I am 23 years old and have been suffering from depression and anxiety for 8 years now. I have been to multiple psychologists , counsellors and therapists .Most agree with me having OCD .I have been taking medications and counseling for 5 years now , but my state of mind does not improve more than just a form of existence. I do not have a controlled thinking pattern. I cannot keep a job or a social relationship of any kind . My symptoms include rapid surges of thoughts regarding deaths , accidents and negative appalling. My mind is in a vegetative state. My overthinking patterns have touched an extent where I have started to administer and find and force my thoughts to think in a flawless theoretical way which in itself is always conflicting and results in more anxiety . I feel I don't even know who I am . Anyone reading please help me gain control on my mind.