Playing against yourself

@RuleDomain, an Extrapolation of the formula would be great. It may just unlock the key to being a GM.

When you play against yourself, do you always end up a draw since you know both sides strategy? Just a fun curiosity.
Yes, I played a few dozen games against myself at my age 8 or 10.
Two reasons,
1.I didnt have any opponent to play (around 16,17 by the time I got chess-mater program seemed heaven to my life)
2. To replay the memorized opening that I read from opening book.
Outcome, draw/win/lose anything happened, depending on blunder.
18 games against self is 36 personalities and that would totally insane. So to be borderline sane, 4 - 6 games against self is okay.