Look at jobs in your area to see what's in demand. PHP is king where I live for example, there's not much else. Some places are all full stack Javascript. In Ja

Look at jobs in your area to see what's in demand. PHP is king where I live for example, there's not much else. Some places are all full stack Javascript. In Japan Ruby is still huge. So I'd check what's in demand and then try to use it immediately to make some useful websites; ghat way you can build a portfolio while you learn.