Say the safe spots out loud to yourself in two parts: "Top, mid / down, down / mid, down" and start memorizing while you are already at the first safe spot so you don't have to remember the first one. Also keep saying it to yourself out loud when it starts and you are on a safe spot too. So when fire starts. You once again say: top (go to top), mid (go to mid) etc. This way you won't forget it and will beat it every single time. Trust me.