To solve the problem, we must first dare to do it, firmly believing that "there is always a way to solve it, maybe it's just that I didn't think of it for the time being." It doesn't matter if you can't do it once, but if you have the opportunity, you must understand the problem and come together. Don't think you know less. You should understand why you do the problem, that is, what characteristics of the problem lead to it. Generally speaking, no matter how difficult the problem is, it has its own characteristics, and it has accumulated a lot. New problems often become copies of the old ones.

Don't be discouraged.