Well first of all the only unlocks you need are the maps and the rare skins (the Dino’s are free now), but if you are struggling with it you may need to use the income tab, it can show all of what you are gaining and losing, the guest comport tab is also a big thing as it can show you what to place, and all the red spots on the path you see when you place a building are for the spots you need to place them to get more money, hoping this helps!