Will a young man's addiction to masturbation lead to his failure on the wedding night?

Praise be to Allah who guided you to repent from the bad habit, and you have embraced marriage, which is a great blessing and a tradition of the Messengers. As long as you have given up this habit, its effects will disappear, Allah willing. Be sure to strengthen your connection with your Lord and rely on Him. A Muslim should be keen to reside in Muslim lands and leave residence in the lands of the disbelievers.