I would suggest you now focus your attention elsewhere. Wordpress is a great eco-system, but if you want to earn more, dive into Javascript with ES6. From ther

I would suggest you now focus your attention elsewhere. Wordpress is a great eco-system, but if you want to earn more, dive into Javascript with ES6. From there you can pick-up a UI framework (I would personally suggest Vue.js), and move onto exciting large-scale front-end applications, with a better pay-check. I've almost doubled my salary moving from a Wordpress developer to a front-end engineer in a years time.