That is one of the reasons why you don't get them. If you believe you can achieve success, you WILL! If you believe you can't, you WON'T!
Your subconscious doesn't know how to tell the difference between yes and no, so if you want to get yeses, believe in yourself.
I was reading an excerpt from a marketing book where the author had been asked to do a massive advertising campaign but the catch was that they needed a big name TV personality, and they had some one specific in mind.
The author knew this guy only ever did 2 campaigns and they were for "small" companies... One was for Microsoft and the other was for American Express.
However, because this person didn't believe in the word "no," he tried anyway and, guess what? He got a yes!
The celebrity was happy to do it. Obviously he got well paid but that wasn't the point. If this guy didn't have the confidence to ask, he wouldn't have gotten that yes.
Never let anybody put a ceiling on your dreams and goals. You don't know what will happen to you if you just ask and keep asking.