Start at savestate 1. You have to find the tree before you even start. Thanks to @Caden00 for making the original Getting Over it v1.4 upside down, which can be found here: https://scratch.mit.edu/projects/426499797/
The project includes proof that the map is possible! (Please note that this was recorded before the small wheel was added near the triceratops. I had thought it was possible, but turned out to be wrong, and added the wheel.) Press V and the ENTER to stop the replay and try it yourself.