The best way is to read it all every day from the start, correcting as you go along, then go on from where you stopped the day before. When it gets so long that you can't do this every day read back two or three chapters each day; then each week read it all from the start. That's how you make it all of one piece.
There was a moment when I changed from an amateur to a professional. I assumed the burden of a profession, which is to write even when you don't want to, don't much like what you're writing, and aren't writing particularly well
The further you go in writing the more alone you are. Most of your best and oldest friends die. Others move away. You do not see them except rarely, but you write and have much the same contact with them as though you were together at the café in the old days. You exchange comic, sometimes cheerfully obscene and irresponsible letters, and it is almost as good as talking. But you are more alone because that is how you must work and the time to work is shorter all the time and if you waste it you feel you have committed a sin for which there is no forgiveness.
Writing has been an important exercise to clarify what I believe, what I see, what I care about, what my deepest values are. The process of converting a jumble of thoughts into coherent sentences makes you ask tougher questions.
I remember my emotions the day we watched Nelson Mandela walk out of prison Writing & literature in South Africa during the anti-apartheid years, became a 'cultural weapon.' You had to use it to fight apartheid & some of us resisted that in the end, you recognize that you are facing a government that has no scruples about using culture & art to oppress you.
They tell me that So-and-So, who does not write prefaces, is no charlatan. Well, I am. I first caught the ear of the British public on a cart in Hyde Park, to the blaring of brass bands,and this . . . because . . . I am a natural-born mountebank.
Fiction is like a spider's web, attached ever so slightly perhaps, but still attached to life at all four corners. Often the attachment is scarcely perceptible.
He that writes to himself writes to an eternal public. That statement only is fit to be made public, which you have come at in attempting to satisfy your own curiosity.