Teaching My Brother To Tie His Shoelaces

Today I tried to teach my brother to tie his shoelaces. Tried, mind you. I wasn't successful. Well that's an understatement. I was half in tears at the end of it (at my inadequacy in teaching him), my brother was crying (because he couldn't get it), and there was no outcome anyways (obviously not). This goes to show the level of my patience. I couldn't teach anyone anything to save my life. I mean, I think my brother's hand-eye coordination is faulty. But that's not possible because he can draw like a pro. Then why on earth does he need about half an hour to make two loops of those shoelaces? I mean, even if you say that fine, it's his first time, just leave it, he'll learn, but half an hour? It's the limit. And my mother is breathing down my neck and referring to Mr. Bill, and saying," If he taught you how to tie your laces then you've never given justice to his memory unless you teach someone else how to tie theirs, and blah blah blah." Mr Bill got paid to teach us stuff like that. And he was a great man and teacher, unlike me. I really got irritated. Even my dad couldn't teach him properly. Why do I always have to be the one to teach our pet monster stuff and take care of him? Even now at 2:42 in the afternoon, I'm supposed to entertain him so that my mother can take her nap or read or whatever it is she's doing. Now tell me, if you had a 6 year old boy bent on irritating you and eventually burning your poor brain and body down to a frazzle behind you for every moment of the day (if he had a chance I bet he'd follow me into the toilet), how on earth would you feel? Irritated. Angry. Annoyed. Nope. That's not it. I feel like murdering him. And in your comments please don't write, "Life is not a bed of roses." Or "Life isn't fair." Why can't it be fair at least about this topic?