PLEASE HELP !! WHAT COULD IT BE PLEASE READ?

Before i start i felt fine a couple days ago except for the major anxiety and ocd i was diagnosed with days before and i was having about 3 anxiety attacks a day for a week almost 2 now i still do but now my anxiety people provoked by this new thought and its hard to shake the thought its scary really scary even thought i know it cant be true i still slightly believe it its scary

When ever i talk to someone or look at someone i have this feeling that there faking like there acting and there acting all around me and the world isn't real and im in it alone and anyone i see is just put there's as a stimulation i use to get this feeling and i would forget about it and now i just constantly think about it and its scaring me idk if the worlds almost real or not EVERYTIME i try to convince my self is real its like i Give my self another reason to believe its fake again and a reason to why