The trick is forcing yourself to get up early. It will be a rough couple of days, but pretty soon, you’ll be exhausted enough to go to sleep earlier. You can also try moving your alarm up in 15 minute increments to achieve the same idea in a slightly less painful way. But, you do have to actually get up when the alarm goes off for the plan to work.
I also find that smart lights really help. Mine gradually dim off in the evenings, and gradually dim on in the mornings, and I usually don’t need a traditional alarm. The dimming should be slow enough that it feels like sunrise/sunset. I usually have mine start dimming on about 15 minutes before I want to get up, and they’re fully off 15 minutes before I’m supposed to be asleep.