LifeFirst, How many times have you "felt disgusted" with yourself? Feeling create reality my friend. No doubt you were using that feeling as a motivator to achieve more but I suggest using a more positive motivator.
Secondly, a few other questions come to mind - like are you in the right course - are you really passionate about what you studying? - and you said something in your post about not knowing what you were on about or something like that which raises question like are you too stressed/overwhelmed/pressured or maybe just plain tired?
Thirdly I noticed that you pointed out that you don't watch TV or play computer games but ... well I'm not trying to preach or anything but maybe something like that is EXACTLY what you need - for some humour and relaxation. The other thing about computer games in that they actually HELP with concentration and they can give you a sence of
achievment/accomplishment but without all the stress and worry.
Hope that helps.
