It’s important to have expectations of ourselves and others – at least a hope and goal that we can make something happen (through ourselves and others). It gives us a starting point to pursue our goals and dreams and a foundation from which to take action. I believe this is a good things.
That said, when expectations move into a sense of entitlement of what others will and certainly SHOULD do for us, then things can go awry. Almost no one wants to help someone who takes people for granted and rarely thanks others for what they receive.
So have things that you want and expect with a deep sense of appreciation in your heart. That will make all the difference.