Once you have your server, you can then add mods for FiveM to make the game more enjoyable. You can also add missions to customize gameplay and make cars, guns, and weapons available to you. If you don't have your own server, you can join others playing FiveM to find a place that offers the kind of customisation you want. If you are a newbie to FiveM, there are a number of helpful resources on the game's subreddit.