Binge Eating

For the past week or so I've been overeating daily by...a lot, probably somewhere between 500-1000+ overeating. It always happens at night. Sometimes I work out so it doesn't have that bad of an affect, but it's like every time I see results I got back to where I started. I don't really know why I've been binging so much probably stress from scholarship stuff, my grandparents being on the hospital, my horse that I've had for 7 years is now not in my backyard (she's being trained at a barn I take lessons at) so I guess that is a little stressful not having her here right in my backyard, etc. I really want to stop eating so much cause I really feel bad afterwards to the point of crying and I never cry. My culinary arts class also makes it hard because my teacher forces everyone to eat the food we make or else we get a bad grade. A lot of her food is high in calories and fat and just not healthy. A lot of her food doesn't even taste good, but we still have to eat it. This week we made Mexican food and today we are eating FIVE different dishes all in one hour! We usually eat like this as a class 2-3 days a week, which afterwards makes me think "Oh I already at like *kitten* today might as well just start over tomorrow screw today!" I really need helpful tips or advice. I just want to be at a healthy weight and I'm only 10-20 pounds from that point.