Erection level, jelqing and edging

Whenever I plan on sticking to a routine I always bump into the same hurdle. I cannot maintain my erection during my jelqs and when I begin edging, I don’t get an erection easily. My routine isn’t much, its only about 20 jelqs (linear newbie routine). My plan as of now is to take a week off from masturbating and post, what are your opinions on this?

Quit masturbating and drink a lot of water.