I'm so sorry OP. No matter how much you convince yourself it's not emotional, and you don't get your hopes up, you simply think you're going to get a house you bid on and it hurts when you don't.
We looked, actively, for a year (online, open houses, weekends and some weeknigts with our real estate agent.) In that time we bid on 4 houses - this was in the spring when it was insane - one house had 9 offers and one had TWELVE - houses were escalating 8-10% over list price. The market may not be quite as crazy but there is still low inventory which keeps competition alive even for those properties that aren't "gems."
As others have said, your time and your house WILL come. Now I am not a huge believer in the "dream house" bit, I think it's unrealistic. Still there is a great house for you out there. Our 4th bid was on a house that I wouldn't have necessarily jumped on, but we took a closer look and saw the potential and have now truly grown to love it and made it our own.
If nothing else, losing out on houses grants you more experience and knowledge to make the right moves on the house you will actually get. Good luck and I hope you get there soon.