Look at your own photographs as often as you can to see the patterns in them and you will also realize the types of subjects that really interest you. Always be looking for ways to improve.
Read your manual, maybe read it again and keep it handy. Get comfortable with your camera before that “special moment” arrives. Today’s cameras are too complex to “know it all”. Practice – practice – practice.
Make a backup copy of your images onto a separate drive or storage media from time to time. Especially backup images that are on your camera. A local photography shop can provide a "backup to CD" service when you are traveling or you can email important images to yourself.