Just a word about being positive. Some people say "I try to be positive", or "every cloud has got a silver border (or line or whatever...)". Yes, sure. But if it was that easy, then there wouldn't be a big business with all those books about "how to succeed in life" and "how to become a happy person".
Maybe i'ts like being afraid of dogs. I happened to be a little bit scared of dogs. Or rather my body is. My body starts behaving in the wrong way in certain situations, like when a dog stands in my way in the streets and stares at me. My body is trained to react, since I used to turn and run like crazy when I was a kid and met a dog. It doesn't help that my very logically mind tells me that "the dog is smaller than you" and "it has probably never attacked anyone before".
Now my neighbour has bought a puppy. I see it as a good opportunity to get some training. To teach my stupid body not to react and prepare to run, even if the puppy jumps at me.
The training in this particular situation might be to try not to see myself in the future looking for cans for recycling just because I've lost my current job. It is not a question about being positive. It is rather a question of not expecting a disaster.