Expectations can come from different resources such as you, your family and friends, society, work, schools and universities. Each of them expect you to do certain things. For example your friends put pressure on you to behave and dress in particular way. Your family except you to achieve a certain goal. Sometimes these expectations have positive influence and make you to motivate to do your best however they may be unrealistic and could have a negative impact on your thought, feelings and behavior

Hey, I like your question but not sure how to answer. I might not understand your question very well. Can I say hope causes expectations? Thanks.