At some point in my career I was afraid of using TypeScript, I really don't know why. But I was and the more I created small personal projects or worked on projects that used TypeScript, I got more comfortable with it. At my last employer, the most exposure I got to TypeScript was an Angular eCommerce Web Application we were building. It was just not enough for me to get comfortable with it until I started to go to meetups, workshops, watched videos, and started to take the Mastering TypeScript course by Colt Steele.
Today, I use TS alongside Vue.js at my job and I have gotten more comfortable with it and continuously learning the best way to use it within our software's code.
Also, did you hear that the TypeScript Documentary was released this week by KBDocumentaries. You should check it out, it was awesome! - youtu.be/U6s2pdxebSo