Check out these great links to better understand the question types on both the PSAT and the SAT Writing Section (or any other writing test): 

https://blog.prepscholar.com/sat-grammar-rules-you-must-know

https://scholarmulhern.blogspot.com/2017/12/sat-writing-and-language-topics-ranked.html#more (SAT Writing and Language Topics Ranked by Number of Questions)

https://blog.prepscholar.com/8-tips-for-avoiding-the-most-common-sat-writing-mistakes

Additional helpful links to prepare for the SAT Writing section:

https://scholarmulhern.blogspot.com/2017/11/additional-elements-of-assessment-on.html (Additional Elements of Assessment on the Writing and Language Section of the SAT)

http://scholarmulhern.blogspot.com/2017/11/vocabulary-advice-and-other-pointers.html (Vocabulary Advice and Other Pointers for the English SAT)

http://scholarmulhern.blogspot.com/2016/08/types-of-writing-and-language-questions.html#more (Writing and Language Section of the SAT)

https://scholarmulhern.blogspot.com/2017/11/writing-and-language-pointers-for-new.html (SAT Writing and Language Pointers)

https://www.kaptest.com/study/sat/5-must-know-sat-writing-tips/ (SAT Writing and Language Tips from Kaplan)

https://scholarmulhern.blogspot.com/2021/09/mulherns-english-likes-mantras.html(SAT Writing and Language Mantras that Will Help You on the SAT and in Your Own Writing)

Improve your SAT score by determining the question type when you are taking practice tests. Research shows that metacognition (thinking about your thinking) improves skill acquisition. In other words, you will do better on standardized writing tests and writing/grammar in general. Your writing skills will increase.

Practice answering SAT-style writing questions on lined paper (with the correct letter response). In addition, try to discern (figure out) the type of question you have just answered. Use the links above as you determine the question types. Write the type of question next to your letter answer.