Hello Janet and thank you for your question,
I am sorry to hear that you have been struggling with your sleep cycle. Good sleep hygiene is very important for overall health so it will be important for you to restore your sleep cycle.
Since you have tried most of over-the-counter remedies, your next step is to see a physician and get a prescription for a sleeping pill. I understand that you dont have insurance, however, many sleeping agents are very inexpensive ($4 for 30 day supply with or without insurance) but will require a prescription from a physician.
Since lack of sleep can lead to a variety of health problems, I would urge you to make an appointment to see a physician.
I hope you find this information helpful. Please feel free to follow-up with any other questions you might have.
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Best wishes and good luck,