Watch an "Introduction" video about it, or read the docs/blogs on why and where to use this particular tech. If you find it useful, then get your head down and work. Watch every YouTube video, read company docs, read random blogs, read FAQs. Honestly, any source you can get your hands on.
And never forget to write more code than you read.
Consistency and hard work is the only key.
I still remember when I was first getting introduced to front end, I didn't sleep for 3 straight days and was studying all that I could.