Drink plenty of water for hydration and purification. The purpose of eating is fuel. Food is not social. Food is not a means of gratification and reward. Food is not an anti-depressant or a warm sweet friend.
Food is fuel and energy.
See is as such and use it as such. A serious athlete would not, and you are a serious athlete. Training does not have to be difficult. The more simple a training or workout program is, the more effective and the more likely one is to stick with it. Basically, pick your sport, do it consistently and get progressively better at it.