Sweetie, you need to seek help, and urgently. Suicide is just NEVER the answer.
I believe everything you're saying about how you feel, who wouldn't feel like that moving to a new place? My goodness! What I will tell you is that you WILL adapt, and you WILL meet new friends. It SEEMS impossible, but it's not. People do it every single day. You may absolutely LOVE your new town and your new friends, and what's cool about it is you can be anything you want...you get a fresh clean new slate. If you have always wanted to be in a certain clique, but maybe didn't feel like you'd fit in...you have the opportunity to hang out with any kind of person you want where you're going.
SURE it will be hard. You will feel sad, you will feel anxious..but I PROMISE you you will get through it. You need to tell your parent(s) what's going on...they would want to know so they can help you. I have a daughter your age and would be devastated to know she struggled and didn't come to me.
Everything at your age seems SO big and impossible. Sweetie, PLEASE trust an old lady when I say we've all been 15 and we all have gotten through times we never thought we would, including moving away from our friends...and back in the day, we didn't have facebook, and twitter to keep in touch with anyone we wanted anywhere in the world. You can still be in touch with your friends every day, and if you decide in a few years, when you're an adult that you want to move back to your home town, you can DO that! But, you have to give this new town a chance. You'd be surprised at how quickly you will meet new people and start new friendships. You obviously have a lot to offer people, as you have a lot of friends now...the people where you are going will feel the same way! You have to try...and lean on your family for support while you're adapting. You can bet that your parents are sad and anxious about the move too. NO ONE likes to pick up and start anew, in a strange place. Support each other.
PLEASE seek help immediately if you think you're going to harm yourself, it's NOT the answer hon..and your family will NEVER recover,. Imagine your friends, who you claim to love SO much you cannot live without them...imagine how devastated they would be if you died! OMG, I couldn't imagine. You cannot do that to your loved ones. It isn't fair...and there's nothing in life that's EVER that bad...think of the people who lose a child to cancer, or who become paralyzed, or are the victim of a terrible violent crime...even those people find a way to go one and live. Certainly this is no reason (and nothing ever is) to take your own life.
You must ask your parents to help you find professionals that can help you. Promise? We're here for you too hon. You can talk to us anytime. We also have a teen depression forum that may help you also:
http://www.medhelp.org/forums/Teen-Depression/show/185
You will be fine!!!