From The Secret - the Law of Attraction

There are two kinds of people:

Those who say, "I will believe it when I see it."

And those who say, "To see it, I know I must believe it."

You are an electromagnetic being emitting a frequency. Only those things that are on the same frequency as the one you are emitting can come into your experience. Every single person, event, and circumstance in your day is telling you what frequency you are on. If your day is not going well, stop and deliberately change your frequency. If your day is going swimmingly, keep doing what you are doing.

Sometimes it is better to focus on one thing at a time, so that you harness all your energy for the one thing. That said, you can list multiple things that you want and spend one day at a time focusing on each one, feeling as though you have received it. You will most likely find that the things you have the least concern about will come first, because your lack of concern allows the Universe to easily deliver.

Resistance blocks what you want from coming to you. You create resistance in yourself by feeling anxious or worried about what you want. That tension causes the resistance and blocks delivery.If you feel tense when you think of what you want, it is time to relax, relax, relax. Let your body relax your mind by allowing your body to be floppy and as fluid as water. Every time you feel yourself starting to tense up, relax your body until you feel floppy again.