This is a paragraph from the story:

"What you don't want to happen with the strategy is a vicious whipsaw, up, down, up, down, up down. When that happens you have to decide how much you're willing to lose on any given day and quit trading if you lose that much."

In other words, let's say you get caught in a whipsaw and lose twice in a row or three times. Before going in you have to decide for yourself when enough is enough. Some days don't work (that's just the market).

I did not trade TSLA today but I see now there was a decent trade early in the 780Put, a peak of 74% and about 60% if you were quick with a practiced intraday sell. But that would have taken a lot of experience. Keep working on it.

P.S. Don't forget there's nothing stopping you from taking a profit anytime you have one.