As a teacher and any professional looking to expand their personal brand, my advice remains the same -- Cut out the crap, stop wasting time on non-important things, and hustle to build your brand.
If you want to build a more scalable brand you need to put out content. Utilize the technology around you like SlideShare, Spreecast, and Google Hangouts which allow you to further establish your credibility, and where you can also charge people for participating if they're willing to do so.
Use your content as a gateway to drug to allow you to further establish yourself and your brand. What I really see here is that people are just loaded with excuses. Do you really want to build your brand or do you want to watch 'Homeland?' Do you really need to take that hour long lunch? LUNCH? C'mon!! There's better ways to use our time. I'm not saying you shouldn't eat, but do you really need that much time for lunch?!?
As with anything in life, you just need to figure out your cadence. What do you really want? Are you wasting your time by doing things that aren't allowing you to achieve the levels you want? If you really want to expand your brand, start putting out content, engage with people that may be interested in what you have to offer, cold call, and do whatever else it takes, even if that means having two hours less of sleep.