When you setup bitlocker, it gives you a backup file, which you save to a thumbdrive. Nobody can read the random code in that file, but Bitlocker would understand if you plug the USB in and say you forgot your password. Remember that for next time.
Your data's gone son. You need government scale hackers to get in. Try anything that comes to mind. Remember, if there was a quick fix, Microsoft would have plugged it up by now, the whole point being that password forgotten should be an unforgettable sin.