Hello, classmate, I have the following suggestions for your situation: Your questions are very common, and you may feel that your schoolwork is increasing and your difficulty is increasing in the first year of study. But now, you need a correct attitude to look at it. Don't think you can't do it well. Believe in yourself, don't be slow and fast when calculating, it is very important not to rely on a calculator, it will make you think forever; I'll do the calculation, no problem, because I have a calculator. I don't think so. In short, we should face it with an optimistic and positive attitude. Remember, son, temporary failure doesn't mean permanent failure. I believe you can succeed!