I know where you are coming from Kanar/Saturn.

I was completely addicted to this very simple game for a good 6 months, staying up to all hours just for a few more races until it started getting light outside. It was ridiculous really, I never play at night anymore because I know it will happen again. I had to take a break from it all as well as it's probably unhealthy to play as much as I did. My wife was calling herself a 'Wipeout Widow' which was was a fair comment really.Hope you feel better for taking a break for a while. Good luck