Final laps?

Just finished a review draft that I am pretty happy with. It's now out for a kind of peer review. Still polishing. Focus has moved somewhat from ensuring accuracy of statements and shortening sentences to such things as type font and justification. The next step, a big unknown, is self-publishing. If you have any advice on that, please let me know. It's my first time. Am sitting here with an old edition of Self-Publishing for Dummies.