See u can find number of books on internet...u have change ur schedule for such a long time but it is not so difficuly to change ur habits it might take some time but u have follow the simple steps and take some ayurveda medicines....if u will take some allopathy medicines u also knw that alprazolam n all medicines have many side effects.... In Ayurveda its mention about dincharya and rutucharya if u follow them u will change ut habit along with u will live healthy life...