Do you want to understand Segwit2x in simple steps?
I am going to leave you a link to one of the best explained documents about Segwit2x by Jimmy Song where he explains each stage with dates and the result that is expected of each task.
https://medium.com/@jimmysong/segwit2x-what-you-need-to-know-about-the-2mb-hard-fork-27749e1544ce
Written by: Jimmy Song.