If you have ever received negative feedback or backwards comments about your writing you should learn from it, if at all possible. Sometimes it will be purely grammatical in the structure of it’s nature. If it is something you you can apply in general to strengthen your writing, then you should take note and apply it on a regular basis. This is one of the best ways to become a great writer on your own. Do you prefer a strict and grammar perfect writing type or do you sometimes write a little more on the casual side? Or does it just depend on the type of writing you are doing?