I like the concept of managing your thoughts and speaking them out loud but it took me a bit to figure out that I had to drag the thoughts and not just click it. When you are holding a thought, maybe you can highlight the area where the player should drag the thought into.
Also, I actually think it would be interesting if the thoughts weren't color coded, it would make figuring out the correct response for certain endings much more of challenge.
Overall, great concept and presentation! The animation was super cool and adds a lot to the experience.