Thinking Positive will help you achieve your goals. It's like the saying" Fake it, till you make it". If something bad happens-concetrate on the good and before you know you've already forgotten about the bad.
If you be Positive-it also helps the way you think. People like being around positive people-they will feel your vibe. Thinking and Being Positive brings joy to the world and to yourself. It opens up a lot of un open doors.