Farming Simulator 19 is much about building and expanding your farm. Most of what you need, like animal pens, silos, and vehicle sheds are placeable objects you can buy.
Building an FS19 farm is quite challenging. But also very rewarding once your farm starts to look great. The good news is that there are a lot of great placeable FS19 mods. Some of them even make your daily tasks as a farmer easier and more fun.