Everyone has a mentality. You have me, and they all have me. You have to understand this first.
To solve the disadvantage of thinking mode of doing math problems, we need to do more problems, think more and accumulate experience in solving problems. When experience is accumulated to a certain extent, your thinking will become more active, and soon you will find that the disadvantages of thinking mode are just so, and mathematics can be so simple.
Of course, you must believe that you can solve this problem and do it from now on. The road is ahead, people have to go.