Are you sleeping a ridiculous amount, laying in bed a ridiculous amount, or simply on a later sleep schedule? My partner often goes to bed at 6am so doesn't get up till 2pm, but still sleeps a normal-ish 8 hours, so I wouldn't consider that lazy. However, if you're going to bed at, say, 9pm every day, then staying in bed till 10am, I'd be concerned that you have a health problem (mental, physical, or a combination).
If you're late-to-bed-late-to-rise, then waking up early is simply a matter resetting your sleep schedule (if you're not an insomniac or anything like that). Make yourself go to bed at the same time (at least 8 hours before you plan to get up) and make yourself get up at 6:30 every day for a couple weeks and you should adjust. Actually getting up at that time till you adjust comes down to nothing more or less than willpower. Setting multiple alarms may help, but ultimately you have to decide your body's not going to beat you.
However, if you are sleeping a lot and that is the problem, please investigate potential health concerns before forcing yourself to sleep less. If your body is needing the sleep, then reducing it could exaggerate any health problems that currently exist and make you worse off than when sleeping more.
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