Healthy diet mean to eat healthy and live healthy it means to live your life in your own mind it means to be strong and to be able to eat healthy and stop eating unhealthy food healthy diet is a good example of being so powerfull and remeber enjoy your diet to enjoy your body
You should wear tight compression outfits to decrease the possibility of drag, especially in an olympic race. You could even wear a swim hat to lower drag from your hair.
In front of windows or even outside try staying away from open doors as well
Hope this helps, good luck ;)