I have at least 15+ years of experience in weight loss, food and exercising research etc. What I have learned is there is no spot reduction. Is your genes that determines where you lose fat first. Do HIIT cardio and keto diet to lose the fat. Then do weight training to up your metabolism so you burn what you eat and they don't turn into fat. Depending on your genes, your fat at your belly could be the last to go. Food intakes determine 70% of our weight and exercise is only 30%. Ask a gym trainer, they will tell you the same. So love your body with good healthy food. All the best!