I firstly started by reading this article
I then worked through the freeCodeCamp exerises
From here, I just coded up basic React apps using create-react-app
So I made a web-app to test solutions to Einsteins riddle
Or if you need project ideas, you can look here for inspiration
If starting to code projects feels too hard, try a tutorial first
And I also really enjoyed the courses on egghead
I have done my best to keep paid courses away from all "How to Learn" posts, but honourable mention to Colt Steeles course which is very valuable. But don't pay more than $25 or so. Udemy is known to have HUGE price fluctuations.