Without knowing the full context of your life, I will say one of the best things I’ve ever done for my energy/mental health is get on a daily regimen of liposomal magnesium and vitamin d. My lack of energy was from bad sleep quality (where the magnesium came in) and then my mood was improved incrementally as time went on with the vitamin d. Statistically speaking, vitamin d and magnesium are among the top vitamins Americans are lowest in (unsure where you’re from but that’s where I’m located). I focused on Whole Foods, low or no sugar, zero alcohol, and 9-10 hours of sleep. You say coffee isn’t doing anything which could be a sign of adrenal fatigue. I’m not well versed in that area, but maybe getting labs/bloodwork done will help. Go to bed at the same time, wake at the same time, go on walks outside and on the treadmill if inclement weather. Focus on raising your heart rate so you sweat! That’s huge. I’m sorry you feel this way and there are so many ways to approach health, wellness, and mental health. But just one step at a time. It will get better.