Yeah stuff like uberman/everyman is usually a waste of time, unless you have almost no social life/commitments and a lot of discipline.
For anyone looking to change their schedule, I would recommend segmented sleep. What I've done for months is, sleep from 9:00pm to 12:30am, then sleep from 3:30am to 7:00am. (I feel very productive in that night gap and get a lot of shit done.) You can also remove about an hour from one of the segments and replace it with a 20-30 minute nap during the day, like in pic related.
Even more important than the hours you choose to sleep is consistency, and avoiding over- and under- sleeping. After you choose a schedule, set your alarm to a specific sound, and condition yourself to get up immediately after hearing it. If you have a habit of turning off your alarm and going back to sleep, then do a few "practice sessions" where you set the alarm for 2 minutes from now, and practice getting up immediately when it goes off. Do five of these sessions in a row, this will condition your mind like Pavlov's dogs, and waking up should become an automatic process. After maintaining consistency for a few months, you may find you don't need an alarm anymore since the schedule is ingrained in your body.