TRT doesn’t have to be expensive, you have to shop around. You can get TRT for $100-$150 monthly via telemedicine. TRT can reverse Type 2 diabetes and some middle aged men with low-T lose glucose control.
A lot of providers are hesitant to prescribe TRT because of all the low quality studies regarding heart attacks, strokes and prostate cancer.
You didn’t provide any reference ranges for your lab values, but the Free T appears low and while not the most accurate, your Total T is barely acceptable. Good thyroid hormone levels are needed for fat loss, otherwise your metabolism will make losing weight nearly impossible.
You should check TSH, Free T4, Free T3, Reverse T3, Thyroglobulin Antibodies (TgAb) and
Peroxidase (TPO) antibodies to see if your thyroid is part of the problem.
If you don’t eat enough your T will decline and also your body will go into starvation mode and lower metabolism and is why calorie restriction only works in the short term until you start losing muscle. You need to eat, just watch what you eat.
Middle aged men aren’t expected to be able to increase testosterone by a large degree (400->800) and are more likely to develop diabetes when T starts declining.