Do not stop trying and keep going on. Many people have been said that if we did not expect anything, we would not be upset. In my opinion, that was right, no expectation, no upset, but the fact is that, nobody can resist it. Everyone has dreams and hopes. How do we live without both of them? Hopes and dreams inspire people to do whatever, even what they never want to do, just only for achieving their goals. No matter how much it is difficult, no matter how much hurt they will get. Some might have achievements but some might not. If we really look at it more carefully, in positive way, failures and achievements are all experiences and good lessons in our lives. We will be able to improve our future lives by learning from the mistakes and making the better. Expectation might give a lot of painful, but it give a lot of effort to do whatever we want as well. You do not need to stop expecting, you just need to keep it balanced. That is all what you have to do.