Too late to keep foreskin always back?

I am not circumcised and I have chosen to keep my foreskin back at all times. I know that if I had started this as a teenager it would have adjusted and stayed back permanently but I just started this yesterday and I'm 29 years old. It stays put sort of, but every now and then it rolls forward over the head and I have to duck into the bathroom and roll it back again. Am I too old to retrain it or is it going to eventually stay put? 

P.S. I know there are lots of people who don't understand why I'd make this decision but don't try to change my mind. I don't want to get circumcised, I just want the foreskin to stay put behind the coronal ridge. I don't get what all the foreskin fuss is about and I much prefer it retracted and out of the way. I do shower every day but I think keeping it retracted is more hygienic, it feels better, my doctor recommended it and my girlfriend and I both prefer it. Don't try to change my mind. I just want to know if the skin will still adjust and stay put even though I'm 29 (almost 30).