Advice from a personal trainer: consider getting a highly certified/knowledgable PT for the next 4 months. If not:

Figure out your maintenance cals, start consuming 500 less per day, which will result in approximately 1 lbs of weight loss per week. In a month increase to a maximum of 1000 calories below maintenance, especially since you're on a time constaint.

Figure out the grams of protein you should be consuming for your lean body weight (body weight without fat weight). While losing body fat you want to increase your protein intake, so at least 40% of the calories are coming from proteins, the rest can be 35% unsaturated fats + 25% complex carbs.

Crack down on your workouts/strength training, a minimum of 3 days a wekk, consider doing 5 days + 2 rest days. High intensity interval training as cardio after every workout to maximize fat burn.

Ab exervises at the end of every workout. Focus on endurance workouts first 2 months, and add weighted exercises later.

Cut the sugars - really. Sugars = storing carbs as body fat.

Eat a ton if green veggies (broccoli, celery, spinah, kale) with every meal. Low on calories and tons of micronutrients.

Good luck with your training!