From my experience of the early startup world, a majority of companies these days use Node.js. Python and Golang are the next biggest languages, but significantly smaller than Node.

However, if you're having trouble with the front end aspect of Django, using Node probably won't make that easier for you. You'll have a lot more options between front end frameworks (React, Vue.js, Angular) , but they'll definitely take more time to learn than Django's templating system.

Think about whether you want to focus on front end or back end for now, and make a decision from there.