Try this move. Lie on your back and close your eyes, then begin counting in your head as you take slow, deep breaths in. Exhale slowly, too. However long it takes you to exhale is two "counts" as long as what you counted to when you were just inhaling. In other words, like this.
Inhale slowly: "Ooonnnee........tttwwwwoooooo"
then exhale even slower: "Ooooonnnneeee......tttwwwwoooo....ttthhhhrrreeeeee.......fffffffooooouuuurrrr."
Add one number each time. So the next inhale/exhale cycle would be:
Inhale slowly: "Ooonnnee........tttwwwwoooooo.....threeeeee......"
then exhale even slower: "Oooonneeee......tttwwwwoooo....ttthhhhrrreeeeee.......ffffooooouuurrr.....ffffiiiiiivvveee."
And the one after that you count slowly to four when you inhale, and count to six when you exhale. Keep going until you're breathing so slowly that it kinda strains your lungs a little bit. When this happens, start the cycle over.
Slows my heart rate down bigtime. 'ts kinda gay but it works, so

Or you could just masturbate, and that's instant
