If there is one thing I strongly believe is tapping the power of the Internet to learn. It is with always with great happiness that everything I have learnt in the past ten years (since I got online) has been only through tutorial sites. Here are a list of some of that where you can quickly and easily find tutorials, articles and information.
If you're looking to secure your WordPress wp-admin folder, then adding an additional layer of password protection goes a long way in helping this. You can either manually code the .htaccess file or get hold of the AskApache Password Protect Plugin to automate the process.