Go out of the bedroom as soon as you shut off the alarm. Don’t allow yourself to rationalize going back to bed. Just force yourself to go out of the room. My habit is to stumble into the bathroom and go pee. By the time I’ve done that, and flushed the toilet and washed my hands and looked at my ugly mug in the mirror, I’m awake enough to face the day. Do not rationalize. If you allow your brain to talk you out of getting up early, you’ll never do it. Don’t make getting back in bed an option. Allow yourself to sleep in once in awhile. Despite what I just said in the previous point, once in awhile it’s nice to sleep in. As long as it’s not a regular thing. I do it maybe once a week or so.