Opinions on this subject tend to be divided. My conclusion? It’s down to how you use it. If you want to support older browsers (IE9 and down), then you might want to learn jQuery first, as it has better support. jQuery can also have a shorter learning curve, so can be good to build your confidence.
If books are your thing, there’s plenty to read:
Take a free online code course
Keep your finger on the pulse
Some of my favourite tweeter's include:
Build something EPIC
What are you waiting for? Go build something! You’ll encounter lots of challenges, but this is where the real progression happens. Online coding communities such as Stack Overflow can help you when you’re stuck. You could build a game, or a completely pointless app. One of my most valuable resources is CodePen, which is simple to use and completely free. CodePen allows you to build and experiment with code online, eliminating any tedious setup up on your machine.