I love this question, and welcome to the wonderful world of data!
For growing practical R skills, I cannot more highly recommend the R for Data Science book (Free online!). It gets you up and running quickly, and it teaches you the majority of the tools you'll need for doing an analysis. There's also the accompanying R4DS Online Learning Community maintained by @jonthegeek and @jbratt, which has forums, book clubs, and chat hangout spaces. We'd love to see you over there!
Finally, if you're on Twitter, checking out #rstats there has been super helpful to me It feels weird recommending Twitter, and it won't teach tech skills the way books and courses will, but it does help with inspiration for what R can do, and it's fun!
Bonus: All these options are free!