Well, the fact that you have terrible sleep habits is very telling. I can't tell when you are sleeping and whether they are normal sleep periods like most people have or if you have interference like with a job or such. I'm not a doctor, so it seems like you need to start with your Personal Care Physician, see if you can get a referral to an endocrinologist (I'm not a fan of sleep medical offices unless you need to have a CPAP machine or so) and see if you can fit in a nap during the afternoon at all. Something has changed in your sleep schedule or your diet or your daily life schedule. That's what you likely need to work out. I know there are over-the-counter sleep aids like melatonin and Unisom XL (doxylamine succinate) that you could ask your doctor about. Plus do a search in this Mayo Clinic blog for how people improve their sleep regimen and get some hints from there. Good luck, wish I could have more helpful hints for you.