"Can't be hateful when you're grateful."
I had a friend who used to say that alot. And over the years I have come to believe she is absolutely right. Something else you can't be when your grateful is fearful and negative. That's why gratitude is so very important to manifesting. When you act as if what you have ordered from the cosmos is on it's way and then you feed that energy by looking at all the wonderful people, places and things you have in your life right now, you draw good things to you much faster. Plus it is almost impossible to be freaked out about what might happen tomorrow, or next week or next year when you are focused on all the goodness of the present.
Does that mean we have to deny the things that aren't so great, pretend that they aren't happening? No, but if we feed the negatives with our attention they tend to get bigger and we are likely to draw more of the same to ourselves.
So develop your attitude of gratitude in order to stay in the present moment and boost the signal you put out to the universe for the results you desire in your life.
Happy manifesting!