Is chess.stackexchange.com a good site for someone learning how to play chess? Would you say this is a good website for someone learning how to play chess?
Hello again, I'm trying to teach myself how to play chess, Im a mature adult, I caught on quickly.
No, it's not, but it might still be very beneficial to you. (Chess) Stack Exchange is a question and answer site, so:


  You should only ask practical, answerable questions based on actual problems that you face.


(taken from here).

So don't expect any tutorials here, or the possibility to play an actual game against someone. However, browsing through the site you will find a lot of resources which might help you - this question for example. If you need a resource on a specific topic, and nobody has asked it before, please go ahead and ask for it.