I think I am possessed by a demon or haunted by something........? I am 100% for real?

I am a regular guy I go to work and come home. I have had some messed up things happen to me recently. Lights coming on. doors slamming, weird dreams and also bad happenings with people around me! I feel like something is watching me, I see things at night, I feel different during different times of the day and I black out every once in awhile not from drinkin or drugs. ( i do drink but not to black out mood ) I am scared for my life and for my kids does anyone have any answer I am dead serious about this I went to google and got a whole bunch of bullshit and want to see if anyone has anything to say or is anyone is going thru what i am going thru.,