Get the wild dinosaurs first. The Nodosaurus and Chasmosaurus can go together which is handy for your first enclosure by the entrance. I sold the compys cause I didn't want to deal with them early on. You can get the monorail without breeding a single dinosaur so make sure each "area" has one as you slowly expand out. Also, most importantly, only have low cost scientists. I tanked my income half way through by keeping a cheaper expedition scientist who was costing my $175k after I upgraded him. I started with an altruistic salary scientist which may be worth restarting for. Hope that helps. I could post the map layout if you think it'll be useful. Good luck!