[NnamdiJr]

I would say Coursera's "Computing for Data Analysis" and "Data Analysis" courses, taught by JHU's Robert Peng and Jeff Leek respectively, were great introductions to the field using R. Both courses are over now, but you might be able to find archived content on the Coursera sites or some of the vids on YouTube. The courses also pointed you to many additional resources that should do a lot to supplement your learning.

After that, you should have a good foundation to self-direct your learning by studying relevant texts (like the two you already picked up) and finding data sets you can play with to just see what you can do and push your skills further.

Good luck to you.