Thinking of a new life is an imagination. But, If your friends betray you don't worry. It was there fault they left you, Besides, You deserve better friends. To earn friends, Just have a regular conversation with them. Don't be shy, And just try to have a conversation with them.
We all get disappointed in our friends. It's part of growing up. I had a tendency to put them on an imaginary pedestal the wait until the fell off by doing something I didn't like. Can be lonely out there. Try being a friend to yourself and to others. I have a special friend I see once every couple of years and its like we talk everyday i know if I called her she would fly down as soon as she can.
The thing is, a best friend wouldn't betray you , you just mistook them for you best friends.you will mostly have of acquaintances in your life, some will become good friends but rarely will their be a so called true best friend.