Start by learning one of the languages that is in demand today. Next, learn how to use the framework that is associated with that language.
Usually learning a language alone is not enough. You need to actually learn the frameworks that use them as well. For example if you were studying java then you would also be learning about android. If you were studying C# then you would be learning about .Net, and so on.
According to this article, the most in demand languages in Jan 2019 were:
Finally, you will need to start programming something in your chosen language. This is so that you can actually talk about something in your interview, and display some skills.
If you are serious I would take it one step further and try to create a basic work history for yourself. For example by working for friends, family, online marketplaces and so on. This will only increase your chances of getting hired, because a lot of employers are hesitant to hire someone with no work experience at all.
Once you have some skills, you could also apply to launch-code. They often help new developers break into the career. You don't have to take their classes in order to get their help.