As Nord said, there are a lot of good posts here that will help. The General Info section of the forums is a great place to start. There are also some good articles that you may find helpful - the Featured ones specifically.
If you need any help or have any specific questions, look for the answer first. If you don't understand, ask. The forums, chatter, and members of the site are generally willing to help as long as you're willing to learn and don't expect to be spoon fed information. Along with that, people won't generally teach you. They will, however, help point you in the right direction, or answer specific questions.