You wont be admitted to hospital, it would be a massive wake up call if you did, hospital is the patients last resort . They are pretty crap places to be unless you are really really ill, and if not could make you a lot worse. To get admitted to an english mental hospital you would have to suicidal to the max or want to hurt people, and then you would be in at most a week. Take a step back and look at your life , sitting drinking soda stuffing your face, vidio games. You have some pretty low level depression an want motivating not hospital believe me thats the last place you need.