Seeing Spirits Everywhere; Scared And Alone

I have always had the ability to hear spirits since I was a young child, later I developed the ability to sense spirits. Recently I have started seeing spirits everywhere. I am finding it hard to sleep as I am frightened. I only became frightened after one occasion where something or someone grabbed my head. About 3:30 am I became aware of a strong presence in my bedroom. I prayed and asked for protection as I was overwhelmed. Then something grabbed my head, I felt like my head was being squashed. I told whatever it was to leave. I was almost paralysed in effect because I could hardly move. I heard a muffled voice mention something about dark or darkness. (However horror movie cliche this sounds I know what I heard). I told it to leave more strongly than before and it left. However I feel like I have been watched while I sleep for a long time. I want to know how to get rid of whatever it is. I want to be sincere about this, I am not some kid looking for a laugh I am genuinely worried about this and need help. I just feel that I need some advice as I am totally stumped on what to do. I have had trouble sleeping since. I have a strong desire to stay away from my room as I am scared abouit being harmed. If possible please help.