In relation to light and sound training, this is fundamentally wrong. The intensity of the light and sound should be in a comfortable area and I would advise adjusting quality brightness and volume, turn it down another 1/3.
At high (subjective) brightness and volume is possible the emergence of unpleasant sensations increased anxiety and irritability, sometimes even pain in the heart, immediately after the session, even the next day.
It is not necessary to force yourself, it can make other.
For those who find it difficult to decide on a comfortable level, remove the volume and brightness to zero and gradually raise to clearly distinguish between surges, such as lights and sound. Start with sound, as the light sometimes (or for some) brings about changes in the sound.
Good luck running!