Life ? needed to be answers

Something that I relized in life today is that people expect a whole lot out of you and you can't always do that like people saying can you help me with this or that well when are you go out of your way for me never probably right? When are you going to do something extra for me?Why do people xpect soooo much from you but little in turn comes back to you? Don't get me wrong there is people who do something in turn but there is not anyone who completly thanks you for all the hard and EXTRA work that you do and ho much STRESS it puts on for others????