Cooking tips!

I don’t know exactly where to put this!! So sorry! But anyways, I only know how to cook meatloaf, tacos, and hamburger help. I was raised with all guys. We barely ate together just made random microwave food growing up, unless we had enough money for a meal.

So I have a boyfriend and I need to learn to cook since we do live together. Although his sister always cooks. Some help me figure out how to even cook. What are some good recipes or recipe books?