For those who don't understand Volodya's wanting to primarily use an online resource to learn MA, it may be because of living in the Northern Virginia area. Northern Virginia borders on Maryland and the District of Columbia (Washington DC). I do as well (sorry Volodya, I have the same time constraints as you) and I work in DC. My drive in the morning is 45 to 60 minutes on a good day. In the afternoon, returning home, it is sometimes the same, but usually 15 to 30 minutes more. And that is being able to use the express lane (3 or more people in the vehicle or whatever the time's monetary toll is) to avoid the heavy traffic in the main line.
Of course, it is the individual's decision to work and live here. If you work in DC, the closer to DC you chose to live determines the cost of your domicile. So you come to this area for the greater pay, only to discover that pay is eaten up by other costs. And a lot of time goes to travel to and from work. I work an 8 hour day, but you have to add another two hours for travel. Ten hours. Some people aren't so lucky, and must work more than a ten hour day, without extra pay, just to keep their job.
@Voloya I understand your dilemma but it is yours to work with. And you have gotten some good advice to try. Some of the advice will work better than other advice, and perhaps some not at all. You just have to try.
I don't normally agree with online learning. But I understand right now that is probably all you can do. Have you looked for any Kenpo schools close to your home or work? Does your work have a gym where you might find a practice partner?
Good luck.