Have you ever wanted to make a math exercise and think you can definitely do it but you just can't resolve it for days and then you see another person do it and they start for something completely obvious and simple and you realize that you could have done that but instead your stupid brain never thought about it?

wft is this? is like you mind follows just one single path and blocks everything else, how do you fucking solve this crap, is it just lack of training or just plain retardation?