Raising children is no easy task for most of us. For some it is a natural task, understanding that once you become a parent life is not about "me", it is now about "them", meaning the children and their mother. Providing a loving environment that nourishes development of the children's spirit/mind/body is the most important thing you can do at this point in your life. This includes loving your spouse with unwavering commitment to raising the children alongside her. Teamwork makes the dream work is so very true!
There will be plenty of time for you to think of yourself and do what you want after the children have been raised and moved on from your home. For now, focus on raising happy, respectful, hardworking children into adulthood.