coherent words

I'm a Chinese and am writing an argumentation in English. I want to use some coherent words at the beginning of each paragraph. I want to put forward 7 points. Can I say "First", "Second", "Third", "Besides", "Moreover", "And", "Finally" when I list the 7 points? Or must I use "First", "Second", "Third","Fourth","Fifth", "Sixthy", and "At last"?
Thank you very much.

I would use "First of all," "Secondly," "As a third point," and then phrases that do not use numerical words, basically, because it sounds extremely mechanical.

What about phrases like "additionally," "also," "after this," "and," "finally," "then," "next," etc?

Keep in mind, though, that this depends on what you are writing.