You will lose your friends, perhaps you will lose your lovers, you will lose your comfort. But if you find yourself while losing them, you will have gained more than a king.
—Marcus Aurelius
At some point, usually in your 20s, you'll notice that the people around you stop believing in themselves. And no matter how hard you try, you can't save them. By all means, do not let it infect your mind. Stay on your path.