Frustrating-dont get it

I spent like 3 hours making a huge and intricate map and then I accidentally pressed the play button and it ruined my entire project. It completely destroyed all of my formatting and the worst part was, theres no way to undo it. I had to start all over and it took forever. It was a complete waste of time.

LoveeeLaugh <3 about Total Recall - Mind Map, v3.4