I'm really sorry to hear that you've been struggling with your health since having COVID. It can be quite frustrating, can't it? It's great that you're taking care of yourself with no alcohol, enough sleep, and a good diet. One thing you might want to explore is probiotics
– they can be really beneficial for your gut health, which in turn can boost your overall well-being. They've helped me personally, and there are many different options out there.