Your metabolic health is trash, your gut bacteria is probably shot, and good chance you have sleep apnea. They’re all related. Low metabolic health causes sleep apnea. Crap diet causes you to be fat which causes sleep apnea. Poor gut health means low nutrient absorption so you’re more tired. Sleep apnea means you’re even more tired. Tired people eat like crap.
Go find a good dietician. Fix your gut. Eat strictly only non processed foods. Exercise 30+ min a few times per week.
It’s hard as hell to start doing all those things, but once you have the routine you’ll feel amazing. Diet fix first though. Without nutrients you can’t do anything.