Join the military. When I was in high school I used to sleep in until noon on the weekends (usually because I was hung over). I joined the Marines right out of high school, and since that time the only time I've ever slept past 6am is if I am traveling in some other timezone in some other part of the world.
Of course, I'm not serious about you joining the military. But the principles are the same. Do something often enough, and consistantly enough, and it will become habit. Thats discipline.
Coaching football (not soccer, for our non-American friends... I'm talking American football) we drill drill drill... and when we're done drilling, we drill some more. Over and over again until the players can do the drills in their sleep. It's my goal to make sure when they dream at night, they dream about drills.
It's the same principle in living the Christian life. You need to set aside a time when no matter whats going on, thats your time with the Lord. For me, it's 4:30 in the morning. (Sometimes 5 in the morning, lol) At that time of the day the phone isnt ringing, my kids arent running around, my wife is still sleeping. I get the coffee going, and for at least an hour I study the Word and talk with the Lord. And everyone knows that that time is sacred... unless one of the kids is throwing up, I'm not to be disturbed. I shut the office door... and it's just me and the Lord.
My wife's time with the Lord is usually late at night. Same reasons. Kids are in bed, the phone has (usually) stopped ringing, and I'm konked out on the couch with a football game on.
Our family devotional time is usually around lunch time, but it is very flexible. Since we homeschool, we have the ability to be flexible.
These are things that didnt just happen... we had to make them happen. And it takes time to get into that habit... but you just have to prioritize and say "this is the most important hour of the day, and it will not be interupted."
As far as time wasted... I think we all struggle with that. With all the media outlets, and entertainment at the fingertip, it is so easy to get distracted. You just have to find a way to shut it out.
But also keep in mind that down time is not always wasted time. We need down time. Thats why God gave the nation of Israel the Sabbath. Thats why God rested on the 7th day. We are to follow His example. This is why most pastors burn out... they never allow down time.
Krispy