If you want both the background and the subject to be exposed properly, use fill-in flash or supplemental light such as from a reflector. You must take whatever time you need to do it right. Otherwise, you'll pay dearly for your mistakes, as I did. Fortunately, many cameras nowadays will self-load, but you still must take care to follow the directions. Of course, you'll make your own blunders, anyway, but don't worry about it.
Mistakes are part of the game.
A really good way to learn more about photography is through a camera club. Some are better than others. Many encourage young people and offer special projects to help you. Even if you go merely to listen, you'll pick up tips you can use. You'll discover there are many opinions as to what makes a good photo, and the opinions don't all agree all the time.