Help me stop my anxiety?

its stopping me get sleep i cant concentrate on one thing because the images in my head turn into horrible images which disturb me after that i start to haulucinate like hearing voices and bumps and groans last night i heard my brain talking to me its strange i know but it made me **** my pants it was like a voice saying that my mind was going to be wiped out and it started to countdown when i got to zero i heard actual laughing then my body jus drooped down like gravity got stronger i started sweating went down stairs to get a drink saw things moving behind me it wasnt a ghost i knew it was my imagination its ******* scary like and i hadnt taken any alcohol at all or drugs i get up stairs as i was moving it felt as if gravity was pulling me down can someone explain wtf is going on? this happens in day time too day in day out not jus in my house either its everywhere