I think the answer to your question is simply BitcoinTalk.
There is plenty to learn about Bitcoin and everything related to it here. You also have the Bitcoin Wiki, but it's not always up to date (and the fact that it's a Wiki that can't be edited by anyone makes it a bit sad in my humble opinion)
There are books available everywhere on the subject, for example Mastering Bitcoin is great if you have a basic understanding of computer development and is available for free on Github.
Less technical but just as instructive on the basics of BTC and money in general, The Bitcoin Standard is an excellent reference.
It is available as an epub for free on the internet, but you can also buy it in paper/pdf format if you wish.
In any case I can only encourage you to lurk here and continue your learning process. You'll see, you'll never run out of resources, there are plenty of them.