Hello and thanks for the query,
is considered a very healthy habit and also promotes sex life. Do not consider masturbation to be unhealthy in anyway.
I understand the anxiety
you must be facing as you have recently signed up for the institution of marriage.
If you are still performing the act of masturbation after marriage, my advice in your case would be to reduce the number of times you masturbate in a day, and leave most of the performance for the time you choose to have intercourse with your wife.
Sexual gratification and performance is more of a mind thing, and less of a body thing. You could be facing some anxiety, and in newly married couples there is a lot of stress
and anxiety relating to performance. It could be this anxiety that is effecting your performance. You could try meditation
and other exercises to relax your mind before you perform, to calm your mind.
As the human body is programmed to perform multiple times a day in suitable conditions, it would be best all those performances are share with your partner. This would lead to a successful attempt with your wife, and result in both partners reaching a satisfied state.
From your description it does not sound like there is anything wrong with you.
If the above tips do not help, then you could always consult a psycho-therapist or sexologist
who will help you with solutions to calm your mind and body before you attempt to perform.
Your problem has an easy and simple solution. Do not worry.
Hope this information has helped you.
I wish you and your wife good health.