I sometimes drink licorice tea. I noticed this evening that this nofap project seemed suddenly a lot easier. I googled and apparently licorice reduces libido. https://www.livestrong.com/article/143786-how-does-licorice-root-help-lower-libido/ I did a little more searching and found this article discussing more herbs with that effect. https://www.livestrong.com/article/32667-herbs-decrease-libido/