I have a problem paying attention to something for a long time, and anytime anyone distracts me, it always pisses me off because it'll take 10 times the first effort it took for me to get back to level of concentration again.
As a student, what I struggle with mostly is my mobile phone, and because phone calls will always come in to distract me, whenever I'm preparing for a test, exam or even just studying for the sake of studying, I throw away my simcard and uninstall all my social media apps. Yes, I hate distractions that much!