Have no fear! Honestly, it's not like school's over or anything. You're just moving forward with your life which as a great step forward. You're still going to have a great time at school, and hopefully things won't change too much! And if they do, you're probably going to have equally amazing moments with some equally cool people. If I wereyou I'd be very excited! I really hate change myself so I do realise how you feel, but I promise that things won't change too much. At least you're aware of what's ahead and can be sure to avoid it. You don't have to be emo if you don't want to! Just hang out with the non-emo people (I'm sure there's someone). Or, if you're powerful enough, you can even make sure your friends don't change. But either way, do make sure you're prepared because it's time to make new great memories!
Good luck! x