[5_minutes]

I would recommend normal online trainings (which you can do without pressure), getting some good books and have the discipline to stick with it.

MOOCs are trendy but hard to keep up with if anything uncertain popups up in your life, or you can't keep up because you don't have the skills yet etc.

MOOCs in it's current form are not particularly interesting unless, or even sustainable for the large audience it's been appealing to --- unless you're a student or someone with plenty of time.