Hi,
I post some good advices for couples that I have found on the Internet.
1. You are not perfect, so accept your mistakes.
2. Have patience, your couple is not perfect either.
3. Arguing is not a combat. It's useful to listen and understand the point o view of your couple. And it may help you to see your own mistakes.
4. Take time for yourself to do what you love, what makes you happy and gives you energy and let your partner do what he or she loves Being successful as a couple will only work if each of you is strong and fulfilled as an individual.
5. Find new things, new hobbies to do together It's just another reason to spend time together.
6. Have a good sense of humour. With humour problems are lighter.