One important point is lacking here and that is the joy of semen retention of no PMO If you are simply forcing yourself to make a streak then eventually you'll fail. You are going to put your guard down at some point because you are stressed out, tired, lazy... I have enjoyed every single day of this 500+ streak and to be honest many days I was lazy and didn't do any special meditation, sports or anything. I just like doing semen retention. You need to find the joy in it. Then there is no effort.