I cannot point you to books or DVDs, but what might work for you is to always try to know where you are, and what could go wrong. It's not that I am paranoid, but I never just 'walk down the street carefree'. I always try to notice my surroundings and whether they might be a threat or not.
I don't blindly turn corners, walk down the street or past doorways or entrances. I don't do these things because I am afraid. I do them so that I don't have to be scared. If I've spotted potential risks way in advance, I can take away the element of surprise.
What also helps -and this is just my personal opinion- is to listen to your gut feeling. (what follows is a copy of an older post. sorry if you've read it already) if something triggers your 'weirdness' sensors, the best thing to do is to get away from that person or situation asap.
It's happened a couple of times in the past when I was a student that I was in a situation where someone or something made me really uncomfortable for no apparent reason. I just had the impression that something was really, really wrong, even though everything seemed fine on the surface. Every time I decided to listen to my gut feeling and got away from that situation or did whatever my gut was telling me. I know for certain that on one occasion it saved my life (or at least saved me from being a cripple).
My rationalization is that this is a remnant of our survival mechanism from the time we were hunters / gatherers. There is too much information around us for us to keep track of in a concious way. The survival part of our brain looks at all the little things that get discarded to see if there is anything wrong, and then yells at us if something bad is about to happen. Kinda like how animals in a forest flee before a natural disaster.
I don't know if this is a correct explanation or not, but I do know that if your gut / intuition / whatever tells you that something is -really- wrong, it is best to listen. Additionally, I think that by listening to those feelings, you can stimulate your awarness. And by ignoring it you suppress it and dull the instincts for self preservation.