As you can tell, I'm proud of reinstating my meditation habit. (92% of days in the past 3 months—yes!)
One of the main ways I've kept my streak alive is using alarms on my phone. If I can't do my session right when I wake up, I set an alarm for when I can do it later. If I can't do it then, I create another alarm. Eventually, I get so sick of bells that I cave.
Alarms for me work better than blocking time in the calendar because they are harder to ignore.
So, give it a shot. Try setting a daily alarm to floss, disconnect at night, or do a quick Tabata.