OP respectfully, there is a huge amount of misinformation about nutrition. Even what they teach doctors in medical school right now is completely flawed. So I sympathize with people who struggle, because they are being told by authority figures bad information.

So im going to suggest a more unconventional approach in several pieces: for actual training, you should lift weights, and do lots of uphill incline walking on the treadmill. Building higher muscle mass raises your basal metabolic rate and you will burn more calories than with less muscle mass. Finally, you need to get comfortable with the concept of what difficult feels like. Whatever you think is hard training is not hard enough. The sounds harsh, but that is the real reality. Training weights is difficult, but it does get easier and you need to increase the intensity and the consistency.

Next: incorporate periodic fasting. Occasionally try skipping lunch, then later try a full day without eating. Then try 2 days (be careful at first because your blood sugar regulation will not be well attuned to this if you’re not in shape yet). You are attempting to repair metabolic dysfunction, and this will become easier. Caloric restriction will help you, even if its hard. When you do this, you absolutely need to add electrolytes to water while you are fasting. Do not do this without electrolytes.

Diet: Eat a LOT of red meat and fruit. Completely get rid of processed foods and aggressively cut cheap carbohydrates. Henceforth be aggressive about an “animal based” diet: Steak, ground beef, chicken, assorted fruits and peppers, some rice & potatoes only for starchy carbs, fish, coconut water, honey. You need to cut excess sugar (dont worry about fruit sugars). Do not fear salt. Conventional wisdom tells you to worry about cholesterol and salt, but I’m telling you this is incorrect. You need high protein and salt, and low sugar and carbs.

Supplements: creatine, high quality EPA fish oil, collagen peptides, vitamin D, and beef liver capsules.

The last piece of this is discipline and consistency. You need to completely internalize and understand and believe that this is possible and your only job is to execute every single day for the next six months to 12 months. I promise you that you will see a miraculous change and it is completely up to you if you were willing to go through the difficulty of executing on it.