Frustration is when you really want to answer questions that keep ticking in your brain, nights and days, then you spend hours to collect possible answer from books or journals, but you love ones keeps asking for your attention (and she deserves it). So you decide to give a little time for her. After sometimes, you go back to your piles and you feel lost. You forget what was it that you want to know. So you are persistent figuring it out in front of you PC, then find yourself actually doing nothing. You realize you are flat and decide to sleep.
And all those questions suddenly utter aloud, and start ticking alllllllllllll night.
(and you have to read all over again, starting from “when you really want to answer …..”