So the path is certainly not always obvious, and couple of them are hidden away but in most you should still be able to find a lot of them. One suggestion i do have for exploration would be to just pick a direction and go. When you walk in the Black stuff, the counter for your changing only happens when you change directions. So you could probably make it quite a bit with just that. Nearly each static camera has their own dialogue scene.
As for getting stuck at the start, that happens when you run out of playable memory scenes due to them being forgotten. There would still be a dialogue scene there if you wait a bit.
But yeah Thanks for playing.