This all comes from personal experience with weight management:
1. Stop thinking of exercise as a way to lose weight, and start thinking of it as something you MUST do daily (like brushing your teeth, taking a shower, etc).
2. Keep your workouts short (20-40min), only take 1 day off per week at the most. Cardio is the most important for weight loss, add weights later. Start slow, but don't stay comfortable.
3. IMPORTANT: It's ALL about calorie intake. Eating "healthy" usually just means there's less calories in those foods. Try to eat "healthy" as much as you can (for nutrition, and less calories), but it's not necessary for weight loss.
4. Use the calorie calculator here:
Calorie Calculator - Daily Caloric Needs , consume a calorie number between the 'Extreme Fat Loss' and the 'Fat Loss'... its not as hard as you think to keep track of calories, everything is available on the back of foods or with a simple google search, you end up memorizing the calorie amounts quick for everything you eat.
5. Spread your meals throughout the day to avoid binging. Eat a small snack if you get hungry towards the end of the night. You will deal with hunger when you first drop your calorie intake, this is normal.
6. Stop buying junk food snacks to keep in your house, you'll just binge on it.
7. Stop drinking calories. Stop drinking regular soda, drink diet soda (0 calories) (stop being a baby, you get used to it fast).
Finally, don't expect to see dramatic results super quick (even though you might since you are quite overweight) ... sometimes it takes a few months for the results to really start kicking in. Be consistent and think of your workouts as life maintenance. You will be thin faster than you think.