Found some very good guides on YouTube. I take no credit for the videos all credit goes to the youtuber psychosmoke.
You can save at any time so you can try to better your previous times. I saved at the start of each room and then i could retry from a fresh run.
His time was 00.14.32.968
My time 00.14.22.314
So you can make a few mistakes hear and there. Good luck
If you negative vote please comment so know how to make the guide better thanks.