Time will heal all wounds, will help you move on. And moving on doesn't really mean forgetting about him, because you won't. You will never forget someone who made a great impact to your life. It's impossible. Instead, moving on is remembering him without hurting. It will come soon. Don't rush anything. Let yourself feel the pain. Embrace it, and then the next thing you know, it's over. You'll get there. Just hang on.