I hope I have explained myself and not offended you.
thick skin - work in customer service- really need to work hard to offend me Laughing.
I believe in Angels also, as I believe that the dark one is evil.
If you asked for empirical proof i could not provide, but does not change my belief.
The information is there- all you need to do is let it in
Could be your friend is correct, that there are evil spirits around you- but perhaps there are more non evil spirits around and protecting you from the evil ones.