Hello Friend, Good that you are seeking a help here. Marriage is a major change in any individual's life as it brings in more responsibility, commitment, sacrifices of personal Interest and obviously a whole new relationship management with wife, in laws and parents etc. This change management process happens quickly for very few and a lot of struggle for many others. You may be falling into the second category.
Definitely, it's a solvable problem if you know how to handle suitation with few know how's or tips and tricks.
Take a marriage counseling support to discuss your problem in detail. I am sure you will be able to see a different prepective about your problem and identify a suitable solution to overcome.
Next Steps
Feel free to reach out to me f2f or online through Practo for further detailed evaluation and recommendation that you can follow practically to overcome this problem. Be confident. You will be alright soon.