first at the top right of the forum you will see google custom search try your question there and read read read when you thing you have read enough read some more, in the long run you will be glad you did .
Second before you buy go to the vendor review area and check out the vendors so you will know a good vendor from a bad vendor.
third when you need help just ask your questions that what we are here for.
welcome to the forum this is a great place to learn.