Welcome! Lets dig in here. I have come to understand that weight loss has a lot if not everything to do with one metabolic profile, including insulin and leptin sensitivity. And much of this is due largely to genetics, but that doesn't mean that we can't change that. It takes time, sometimes longer than we want. It all starts with life style, and solid and consistent change in habits that become routine. Begin by subtracting one or two foods (as little as once or twice per week). Say for example, you eat a chocolate cookie every night after dinner. Eat a cookie instead four or five times for one week, 3 or 4 the next and so on until you don't even think of a cookie. Much of the changes that need to take place are in the brain and largely have to do with dopamine.
Next, plan your daily meals, not hard core, just plan them and eat what you plan. For example, I'll have a salad for lunch with some rice and piece of fish. Dinner will be some kale, brown rice and a steak (one cookie on wednesday). It takes time for things to change and fast changes only result in fast rebounds. There really isn't much need for fat burners at this stage as they may only serve to compromise your metabolism and the rebound will only be worse that when you started. The slower the steps, the smaller the steps the greater and more long term the result will be.
Go to the gym, but love what you do, find the love for training, want to train to the point that if you don't you go crazy. If you hate squats, don't do them (yet). But if you love working on machines, do that. If you prefer walking in the forest, and hate the tread mill. take that walk. Better results come from loving the process. Progress is a result of the process. The process is the goal, not a low body fat percentage. What we want is to feel better, and love better, and this lifestyle can do that. But it takes patients, determination, and a love of what you are doing. Many of us just love to lift heavy shit, some of love to push ourselves to find our limit, some super dig finding the mind-muscle connection and perfect form (form is important don't get me wrong). Each of find our bliss in some aspect of this. I really love the diet aspect, not just foods, but the whole damn process, and find a lot of inspiration there. I also love testing my limits in lifting, if I ain't sweating and breathing heavy, or scared, I didn't do my work. That's just me.
Start slow, make the changes that you can, listen to your body and find that sweet spot. Carb cycling, and keto diets can help with insulin sensitivity. I have no experience in keto, but I hear that it can work for many to fight insulin resistance. It may help to get your insulin tested, and a metabolic panel to see where you are at in those respects.
I'll stop ranting here. But lets see where we can go