I am a frontend developer focused in creating application with React, Vue and Svelte. Currently, I am a software engineering student at Kasetsart University.
Learn backend development. Currently, I am more a frontend guy. So I think learning backend development should be useful for understanding backend work and be able to do something without external backend.
Learn mobile app development. I am learning Flutter and React Native as it's quicker to develop a cross platform app for quick experience. I am still finding what app should I do.
Learn some UX/UI skill so I can design things better.
Great.
Best wishes for you.