I felt like this after my first job where I wrote Java and Perl for three years before moving to a full-stack position that was heavy on JS. What helped the mo

I felt like this after my first job where I wrote Java and Perl for three years before moving to a full-stack position that was heavy on JS. What helped the most was building numerous hobby apps in node and thousands of leetcode questions. A book or a course was somewhat helpful, only in reference and second to the api docs. I would answer them with es6 trying to make full use of the spec. I did this for 5 months answering 3-4 a day until the medium and hard questions became easy. There is a thick line between competent and fluent when it comes to programming and a lot of devs don’t want to put in the work.