I made myself a chart of all the chapters and I colour them in with a pen as I finish each one. This helps me keep track of which ones I've finished so that I don't have to read the books in order! (I do, however, read a whole book before moving on to the next.) One of my new year's resolutions was to finish the entire GNT, and it worked out to 4-5 chapters a week... might want to double-check that since I had parts read prior to this year.
Mark, John, and the epistles of John are the easiest places to start. After that, the other gospels won't be too hard. Paul's epistles are a little tougher, and then Peter and the rest.
If you don't have it already, I highly recommend Kubo's "Reader's Lexicon". It will give you the less common vocab by chapter and verse, so that you don't have to flip around a regular lexicon. It makes reading so much less frustrating when you don't know the vocab!