I don't know if it's possible to go forward, I've been trying for an hour and I don't really know how to continue. I tried to go back but as I have died, the objects set up have returned to the original positions so I am forced to go forward.
The map view:
Here as seen in the second photo, I can access the closest red ones, but that's all I can do.
And here in the third photo, I find it impossible also to do anything.