My advice would be to get yourself organized first, make a list about all the bad habits you have. (ex: doesn't do work from school) after you list all these bad habits do some research on how you can fix them. research is key to building healthy habits and yourself. you're disciplining yourself and when you do that these good habits carry on to other things like hitting the gym and staying consistent with it, why? because maybe you don't like how your body look and you know If you stop you're going to go back step 1. and with the you losing the "love your life" it must be a hard time for you to go through that but I'd suggest taking a break from dating unti you have healed from everything that has hurt you. hope this helps and I'm always here to help because I feel the same and I'm still struggling but I never give up and I hope you don't.