It requires some time, usually up to an hour a day. That’s genuinely too much for some people, and if you work 80 hour weeks and/or have infants ricocheting around your home like screaming DVD logos, then you may want to put this ambition aside for now and deal with that instead. If on the other hand you spend any amount of time each day scrolling your phone while Netflix plays something you’re half-watching on a screen across the room, you do have time!