Try to get rid of the temptations and stock up on good healthy treats. You will be much more prepared to handle the stress if you are eating well. You will feel like you have more control. Think what you can do to turn it around tomorrow. You will get through this and don’t turn away from the group because you’re embarrassed. Stay in the game. Stay off of the scale and just get yourself back on track with your nutrition. When you are able to, add your weight training back in. Properly fuelling your body AND your brain are most important. You will even think more clearly when you have clean nutrition. Just pick right back up where you left off.