We all feel like that sometimes, it is quite normal but you can't let it take you over. You don't want to make things worse by doing something reckless.
Only your meds will help you to get past these feelings fully.
...
I was having a good day today, still am sort of but I was out having a cigarette & heard some people making funny noises. Probably just people walking down the Main Street but I was paranoid they were in my bushes. I'm now a bit on edge if not quite as scared. I can't shake this feeling that there are people who will break in my house to try & kill me tonight.
I'm going to watch a film but I think when I go to bed I'll start feeling scared again.