Things never turn out the way that we expect them to. Fact. Think about it, how many times have you been disappointed in your life? and why were you disappointed? Because you expected things to be a certain way, and they weren't. If we are creatures that are suppose to learn from experience, why can't any of us get this. Most importantly, why can't I?
Every time we find ourselves disappointed, we have some snide commenter who never fails to mock, "well, what did you expect?" Obviously not this, otherwise I wouldn't be so disappointed. Instead, you should begin by asking yourself, why did I expect this. Find the fallacies in your logic, trace your evidence back to the point where you diverged from realistic deduction and ended up in la-la land. We all do it, because if our expectations weren't so unrealistic, things might actually turn out the way that we expected them, at least sometimes. So here's my advice to you; here's my advice to me. Stop just expecting. Stop expecting the impossible, the unrealistic and the improbably. Stop expecting to always have your own way, for the picture to always look the way you painted it in your head. Take those expectations and burn them in the courtyard. You'll save yourself a whole lot of disappointment.
I'm not trying to be pessimistic here. Just replace your expectations with hope, hard work and a sense of peace that no matter what, you are going to be okay. Because you shouldn't expect anything to be a certain way unless you are willing and capable of putting in the effort to make it that way. Be proactive, don't just sit around and expect things to happen.