You do have time, you're just choosing to use it to do other things. My guess would be sleeping, spending time with friends and family, watching TV and procrastinating on the internet. None of these are bad things, you just have to choose your priorities. Make a conscious decision which is most important to you and stick with it. I personally have no time or patience for people who complain they don't have time/energy/motivation to train/diet. You, and everyone else have all the things you need to train and diet effectively, you just choose not to do it. That's fine, and I choice I've made in the past plenty, you just have to own that decision and live with the consequences of it.
This rant was brought to you mostly by the waddling fucktards I overheard complaining about how they couldn't loose weight with their baskets full of sugary shit. It was probably harsher than necassary
Also, college just isn't that intense. Sorry to burst your bubble but it just isn't.