First of all good sleep is essential for our body to function. It seems like your sleep cycle has become irregular from the description you have given. Would not advise sleeping pills as they are addictive.

Hi I see that you are falling asleep very late and waking up late. You have not written whether you wake up in between. I assume you are sleeping continuously after you fall asleep. This kind of sleep disturbance normally is seen when the person is too anxious or stressed. Many I suggest , no matter what time you sleep, wake up early and also at a particular time. This will help you to fall asleep early the next day . Pls do not take day time naps . Kindly read a book at night before going to the bed.

Plz don't self medicate .u just consult a psychiatrist for valuable advice,infact u can contact online .