If youre stuck on a problem, dont sit there and think about it; just start working on it. Even if you dont know what youre doing, the simple act of working on it will eventually cause the right ideas to show up in your head.
Mark Manson,
The Subtle Art of Not Giving a F*ck: A Counterintuitive Approach to Living a Good Life
The Subtle Art of Not Giving a F*ck by Mark Manson