I won't to till my friend that's problem

I understand your concern. The effect or side effect of a sleeping pill depends on dose of the tablet. However more clarity is needed regarding your problem. Information regarding your sleep, hunger, energy levels and concentration at whatever you do would be more helpful to decide on the severity of your condition. If suicidal you should seek immediate psychiatric assistance. It is manageable with appropriate treatment, so that dysfunction due to the same can be reduced and your quality of life will improve. Some counselling sessions and if needed medical help might be useful for you. I would also be more than happy to help you with that if you are looking for further online information. You can directly consult with me through Practo as needed. Online chat consultation is available.