Take baby steps as far as eating healthy. Try to do at least one meal that is good for you with either a lot of veggies or fruit. You didn't get the bad habits overnight so it will take time to get good habits. That's if you really really want to start feeling better. Ever try Hummus with baby carrots or cucumbers? Or cottage cheese with fruit? I find I get really tired if I eat something that is high on the glycemic Scale. Something made with white processed flour usually like bread or pasta. If I stick to meat and veggies, I feel a lot better and don't feel so tired and sluggish. Try to get in a walk too, it helps your body regulate sugar. Trust me, I have a bad back and flat feet so walking is a challenge but I found a good pair of walking shoes with good support or even inserts and it helps.