Hi Doctor I Am Suffering From Insomnia For More Than

hi doctor
I am suffering from insomnia for more than a month, i can hardly sleep, I am having zolfresh 10 Mg everyday for the last 15 days and can sleep for 2-3 hours that is too with a lot of awakenings at night, In the daytime I feel extremely tired and depressed, I tried to quit the medicine and was unable to sleep at all without that, I awalys had sleeping problem for several years but was able to sleep after struggle and did not use to feel fo drowsy as I am feeling now, could you please suggest how should I quit the medicine and get a proper sleep and come out of depression as well.