Hello Friend, Good that you are seeking a help here. Proper and sound Sleep is the essential for both physical and mental health. Most common reason for sleep disorders is mental stress or anxiety along with lifestyle and food habits. When your mind is pre occupied with anxious or negative thoughts either due to worry about past and  fear or insecurity about future, you become restless and gets distrubed sleep or no sleep. So having experienced such emotional thoughts affecting your day-to-day life and behavior, why don't you take the next logical step to address it by taking a professional help. Yes, it's a curable problem even without medicine, if you take care of few change in your lifestyle, do certain exercises, home remedies, self therapies etc. Call me directly or online through Practo to first get a proper evaluation on your current symptoms, so that a suitable solution can be recommended. Be positive. You will be alright soon.

Hi , your mind is occupied with over thinking so you are not able to rest

It could be due overthinking or thoughts of unresolved issues... Consult a psychologist for a better clarity.