what frusttrates me the most about writing

I would have to say that i am not able to just sit down and start pulling out stuff to write an essay. It takes me quite a while to get started. Also, in highschool, i was taught NEVER to write in first or second person. While that is a good thing, its terrible for writing an argumentative essay. I also dont like revising my own work bc i have no idea on what im looking for or anything, but at least i have some friends who are good at that. Another thing is that i am probably my own worst critic and i tend to erase paragraphs at a time bc i dont like them, even if they are perfect.