A marriage is made up of what you each bring in it for yourselves, and the more you give to each other, the more you'll get back. You are investing in a relationship that you intend to last. Temporary sacrifices will result in long-term gains. Be aware that, over time, things you found most likeable about each other may fade. New ideas, experiences, and behaviors are necessary to keep you interested in each other.
Marriage is an ongoing process that requires attention, effort, and compromise.
As you grow and change as individuals, so too must the marriage change. When a conflict arises, be prepared to problem-solve and brainstorm some ideas to resolve the problem. If you are both willing to give an inch, there will be far more room to strike a balance between each of your needs. You can agree to disagree and take a break from your conflict. If it's important, it will be there when you get back.