What is written below, taken from an earlier version of the GYE Handbook, should provide much clarification. Note that Rav Aharon Feldman, Shlita, reviewed this version of the GYE Handbook and wrote in his Haskama to GYE: "I have seen the materials and handbooks which this program distributes and have only praise for its methodology and approach to the problems of the addicts. Everything which I have seen conforms to the highest standards of Torah values."
Vows In order to ensure that our fences are strong, we can use a very powerful tool called Nedarim or vows. Normally making vows is frowned upon by our sages as with someone playing with fire, but when it comes to girding oneself from these temptations, we find that making vows is praised by the Torah and by Chazal. As the Pasuk says "Nishbati va'akayeima, lishmor mishpatei tzidkecha - I have vowed and will uphold it, to guard your righteous laws". And as it says "Nishba lehora velo yamir - oseh eileh lo yimot le'olam - He who swears to prevent bad and does not nullify... he will never falter". And Chazal also say that Bo'az swore to guard himself from transgressing when Ruth came to him at night, as it says: "Chai Hashem, Shichvi ad haboker - In the name of G-d (a vow), lay here until the morning".
However, as important and helpful vows can be in fighting addiction, they are also just as dangerous. The addiction is very often more powerful than vows. Therefore, it is vital that we learn how to make vows in a way that will work and be safe. Instead of fighting the addiction head-on through the vows, we can make vows that will help us “walk around” the addiction. For example, we can try to make a vow for two weeks that before we give in, we will first do the things that we wrote on our list (mentioned above), or make a vow to give a generous donation to Tzedaka in the event of a fall.