Replace fear of the unknown with curiosity curiosity killed the cat. It's first life was gone. It's second life was long but not nearly as fun. The cat wishes it could have used up all it's nine lives rather than just one and live the second in fear.
TRAIN your mind to see the good in every situation. It won't come naturally, you WILL have to work at it, but eventually it will become second nature and you will have joy in your life even when things aren't going your way.