Five days is really good so be proud of that rather than considering it a failure. But if you want more, which is great too because I assume being denied is making you feel good, then try mixing it up a bit. On day five where you seem to have a glitch, break the cycle, do a no touch for the entire day five, tease yourself mentally and read tumblr and watch porn but only play with your breasts the entire day. That can be a great way to reset the denial clock a bit.
Alternatively, deliberately reward yourself with a ruined orgasm on day 5, and then again on day 10, and only cum on day 15.
Finally, edging for hours is amazing but it should be the exception, you have a life to lead too. Don’t let denial take over, it should be adding to your life, not taking away from it.