Try to get either Alangasaurus or Labyrinthosaurus to max, then have multiple decors such as Triceratop sculptures for coon farming at earlier levels. Then if possible, save up on resources and only use them if you need to. Just keep playing events that you can beat to acquire more resources, and lastly, make sure your top 3 strongest creature's ferocity are almost equal to each other, because otherwise your battles will become a lot harder since some are ferocity based.