The personal statement is also a great place to explain more serious problems, like less_than_ideal grades or test scores. Don't be afraid to write something like, "I don't test well" in the statement. As long as you can provide a good reason for you app's problems, it's okay to address them directly. You won't be able to hide it from admissions officers anyway, so providing a reason for problems is always preferable to ignoring them.
The personal statement is one of the most important requirements for college admissions. Along with your GPAs, SAT requirements, and recommendations, a high quality personal essay is one requirement you should never leave out. There are many ways for you to make your essay more compelling than others, such as looking into personal statement examples as guides. Nonetheless, you can also screw up your admissions essay by committing the above_mentioned mistakes. The important thing is to stick to the rules, while writing a lively, original, and creative personal essay.