Bed early, no booze or other drugs. Wake up, straight out of bed, water on face and neck. Drink a glass of water. 10 mins of cardio to loud rawk music (or whatever gets you pumped). Shower, sh**, shave (if required) then a decent breakfast and a coffee or tea. Tell yourself positive, constructive stuff about the day - make plans, get yourself mentally organised for the day. Tell yourself, out loud, that you are going to hit the day hard and try to drag every ounce of enjoyment out of it, or at least every ounce of learning if enjoyment is too distant a boundary. Maybe even listen to some comedy podcasts while eating breakfast - if you get your face grinning and you hear yourself chuckling, it can put a nice psychological spin on the day. If you can't muster happy thoughts, at least aim for determinedly constructive and positive thoughts. And then go for it....