There are many many ways you can improve your skills. I would also suggest you to read this article Adventures in JavaScript Development

Hi, Here are given important 6 steps to become a successful JS Developer: Stage 1 : Define why you need to end up better at JavaScript. By this I mean, it is useful to recollect that JavaScript is an unfortunate chore. What will winding up better at JS enable you to achieve? Do you wish to pick up work as a web designer? Or then again would you say you are as of now a web engineer who needs to sharpen her art? Characterizing your ultimate objective will decide your subsequent stage. Stage 2 : Determine what you have to realize so as to meet your objective. Suppose, for this model, you wish to wind up utilized as a web designer. The following stage is to examine the aptitudes you have to get enlisted and make a rundown of the abilities. Guides to wind up a web engineer would be middle of the road level comprehension of the JS dialect, DOM control, the jQuery library, algorithmic reasoning and some customer side structures, for example, Angular and React (if seeking after front-end) and/or node.js (if seeking after backend/full-stack). Stage 3 : Assess your abilities and gain the essential learning. In proceeding with our precedent, suppose that you discover that you have to end up better at algorithmic reasoning so as to pass a coding meeting. You would then do some exploration and likely agree to accept a course or stage participation that will enable you to meet this objective. There are some great seminars on Udemy and difficulties through freeCodeCamp that can enable you to reinforce this muscle. Stage 4 : Put your recently picked up learning to the test. When you increase further information, it's an ideal opportunity to test yourself. On the off chance that you will probably fabricate a web application, right now is an ideal opportunity to attempt it. On the off chance that we proceed with our past model, you're presently prepared to apply for occupations. Stage 5 : Reassess in case you can't meet your objective. On the off chance that you don't meet your objective at first, don't stress. It can take a few endeavors to find a vocation as an engineer, fabricate a web application, finish a course, and so on. Return to your purpose behind needing to wind up better at JavaScript in case you're feeling disappointed. Achievement will lie in having the capacity to make sense of what regardless you have to learn. Stage 6 : Repeat steps 4– 5 until the point that you meet your objective. As you experience this procedure, you will show signs of improvement and better at making sense of what is absent from your JS instruction. You will be comfortable now with the courses and assets that will be the most accommodating to you. You would then be able to keep on picking up the aptitudes and learning you require until the point when your objective is met. I understand that my answer is to some degree general; be that as it may, with a subject as tremendous as JavaScript, I imagine that it is useful to be vital about what it is you need to achieve. Something else, it's very simple to get diverted. You could go through the following 10 years alone learning JS systems! You will turn out to be better at JavaScript, truly, yet investing energy in subjects inside JS that won't further your objectives won't be an incredible utilization of your time. Along these lines, that is the thing that I trust you can take from this answer: be vital and decided, keep on taking a legit appraisal of your aptitudes, and return to your purpose behind needing to wind up better at JS if/when you stall out. CRBtech provides best online java course in Pune along with 100% placement guarantee. this course will help you to become a JS developer. Good luck to you — I trust that you're ready to pick up the learning and abilities you require with JavaScript and meet the objectives that you'd like to set for yourself.