"I am working on the issue non stop until it's solved"
If it is a genuinely difficult problem I've found that the most productive approach for me is to ensure I have all the facts in my head and then go and do something else completely unrelated. Usually some kind of solution will present itself at 3am or while I'm having a shower....
Of course, this approach doesn't work with all problems but it certainly beats hitting your head off a brick wall.
It depends on the kind of problem. Your system works great for a concept problem; but for a detailing problem, especially a tedious one, you just have to keep hammering.
If it is a genuinely difficult problem I've found that the most productive approach for me is to ensure I have all the facts in my head and then go and do something else completely unrelated. Usually some kind of solution will present itself at 3am or while I'm having a shower....
Of course, this approach doesn't work with all problems but it certainly beats hitting your head off a brick wall.