Haha, when you are young, you have no capacity to take responsibilities and too early to realize
 expectations; when you are old, you lose the capacity to take responsibilities and realize expe
ctations. So, perhaps you can see mid-life crisis from an opposite perspective, age about 40 is 
the golden time for one to take responsibilities and realize expectations. When you miss the gol
den time, you will lose the only opportunity as a human being to take responsibilities and reali
ze all the expectations from your parents, your family and yourself. 
However, if the responsibilities and expectations are really things you cannot handle, give them
 up. I like to push myself, and I can feel the painful happiness from pushing myself to the limi
t. I push myself to depression, but I also pull myself out of depression. I feel pain, then happ
iness. When I feel painful, i am really painful; when I feel happy, I am really happy. I cannot 
bear monotonic life. Maybe...
If you'd like, you can share with me more detailed responsibilities and expectations to let me t
ell whether they are too much, though there is no  clear cut-off. 
Best