Night time anxiety

Please help at night I am experiencing anxiety and I feel as if something is watching me and at every little sound that occurs in my house I jump and am terribly scared I don’t know if it is my am imagination or if I opened a dark way because I have been watching porn and I know it is not good and am going to stop and if I stop will the evil go away or what do I have to do to get rid of it

I also keep waking up at various times every night