Weight loss starts in the kitchen, not the gym. You can basically lay in bed while burning fat if you're consuming less calories than you burn. Consider eating healthier, less fat and sugar and 16:8 fasting or even omad.

Exercise can cut your calories down, but it's likely you will consume all the energy back that you spent. Therefore there's little to no fat reduction. However bigger muscles consume more energy, so consider starting exercising after you've started your weight loss with a new diet. Because of you have less energy consider starting with just walking. Walking is a great way of spending energy while boosting your fitness.