Hi, yeah that's exactly it!
I was thinkinf totally wrong!
I thought I had to place one breath at the vertical spikes on the left (it's possible if you jump right bfore running into the horinzontal spikes. its ridiculously hard to do though),one on the top horizontal spikes and the third one the same way as you did.
Using the top left wall , that should theoretically work. But it is in fact ridiculously hard and impractical, so I was quite sure that it was wrong.
I didn't really expect that you have not to jump from the second breath to the top left wall but rather directly move over the spikes.
In th end the solution was the most obvious and easiest way. I just thought wrong about how and where to jump.
Anyways thanks for the answer! :-)
PS: You also could have made the top left and right wall a bit longer, so that one could jump from the second breath to the left wal and from there over the spikes on the third breath.