I am a 17 year old male weighing 100 kgs. My height is 5ft 9in. I exercise 6 days a week for 1 hour. What is the best diet for me to lose weight & fat? Tq

Portion control. Portion control, portion control, portion control. Eat less ---of healthy choices. Include 1/4 as protein, 1/4 as carbohydrates, 1/4 as fruits, and 1/4 of the plate as vegetables. Eat. from each of the food groups, include whole grains, legumes, beans, chicken, meat, fish, dairy, eggs, etc. Try to stay away from fried foods, fatty foods, Try to avoid sugar drinks, and highly processed foods.
Well balanced. You should still eat a well balanced diet but with the goal of losing 1-2 lbs per week. There are many fitness apps on smartphones now that can track your progress based on goals you enter. It's all about portions, eating small amounts of healthy foods, but more often. Congrats on your decision to get healthier. Good luck!