Do you really want to waste your life dreaming about trhe impossible? Until it registers that you're thinking about something that's unattainable, that's what you'll do. There have to be other things that require your attention - work, study, friends etc - and the sooner you turn your attention to them, the sooner you'll be able to get on with your life. But no-one can do this except you.
Start by getting involved with your friends and their interests. No doubt they have been wondering about you and this obsession (or if they didn't know about it, they will have been wondering why you have been kinda distant) and they will be happy to have you back, and they will help you get over your impossible dream.
Get involved with the other aspects of your life, and you'll eventually find a real dream!!