I am learning Vue.js and Angular 9 (search Udemy for courses by Max Schwartzmuller - he is excellent). Knowing how is supposed to work on the front-end helps you model it in the database.
It is also time to dive headlong into those side-projects you have been putting off
Motivational quotes if you need them:
Necessity is the mother of inventions
If you apply enough time and pressure, you get diamonds.