You may be surprised to know that sex within marriage doesn’t cure pornography addiction.  Those who entered marriage with a porn problem soon find that they still have a porn problem!  Therefore, don’t allow the Devil to deceive into thinking this will fix itself if you get married.  The time to act is now both for your own sake and the sake of your future spouse, if you do get married in the future.  Finally, remember that the God who created you as a sexual being is able to sustain and strengthen you for purity, even if that means a life of celibacy like the Apostle Paul or Jesus himself.