Best way to make some money from my passion of building android apps while I am under 18?

Hi everyone.

As the title saids I have a passion to develop android mobile apps and i have a couple of apps ready to make money but i don't know which is the best way to make money out of it.

I was thinking about these 2 options:

1. Selling my apps on sites like codester
2. Publishing the apps on the market

So i already have a good instagram account with 5k followers and i think that this i worth mentioning because this i why i want to sell my app:because first i don't have money to pay for the promotions and two because the people that are following be said that they want to buy my app.

So i was thinking that at the start i should sell some apps make some money and than after i have money and a good idea publish the app on the market.What do you guys think about this?

If anyone sold his apps on sites like codester please tell me your experience and about how many people downloaded your app.And if you have any other ideas about how i can make some money from my apps please tell me