I don't quite when, but you are lucky enough to be moving on, with opportunities to look forward to and cling on to when everything else is making you sick.
what you are feeling now is not permanent. you are fortunate in that you can fume about your situation because it is something to be endured with an end in sight. you don't have to get used to this. your life is about to change in the most drastic way it has done, and who knows? you might even miss where you are now. trust me. once you've moved out and you're surrounded by people you've never met before, you won't understand how you could ever have felt like this.
you will feel better. don't give up. your life is going somewhere, and you have absolutely no excuse to stop now.