Yeah. And a PMO before sleep is just so utterly counterproductive - I've been quite exhausted, then PMO'ed to relax, then stayed up hours more just procrastinating. Procrastinating on sleep! That's the level of sexual tension the first PMO creates in your body.
A PMO never helped get rid of an urge indefinitely (it alleviates for the moment, but boosts the urgey feelings for the rest of the day)