Hi there ~
is a normal sexual activity and is physiological in nature. However it may hurt to masturbate multiple times a day. There is no set number of times that you could masturbate per day and it depends on your comfort level. I hope this helps and it will also not affect your later married life. Bedwetting
though is an entirely different problem and you can treat it with the help of a psychiatrist. Tricyclic antidepressants are useful and healthful measures in water intake are also helpful in making the best way out of your current situation of bedwetting. I hope you consult a psychiatrist
who can guide you through your problem.
Take care and have a lovely day!