I think it's tough to force it if the energy and motivation aren't there after a day of work. It becomes significantly easier if you have something that you're

I think it's tough to force it if the energy and motivation aren't there after a day of work. It becomes significantly easier if you have something that you're excited to work on that can exercise a few of the new things you'd like to learn or practice. For example, perhaps you play games and want to make a tool/website that makes some aspect of your game-playing life easier or more enjoyable. You can then use that project as an opportunity to learn new skills and put them to use when building out functionality. Having something you're actively looking forward to doing is an easy way to have that energy boost even after an exhausting day at work. Alternately, don't even try to put pressure on yourself to do anything like that during the week and perhaps just allocate a couple of hours each evening on the weekend to learning when you've had time to do other fun or less exhausting things throughout the day.