Hello, you have mentioned about work pressure which led to difficulty in sleep. Other symptoms like whether you felt execessive worry also or are you feelinf sad also should have to be evaluated and depending upon them proper medication should be chosen which will definitely relieve your symptoms. Remember that newer medications are available which are very safe and having addictive potential. Kindly consult Psychiatrist for proper evaluation and management of your problems. Thanks and hope the iinformation will help you.Bye.