It's impossible for someone to sit here and really flesh out the entire profession. There are so many small nuances to it and much of it is subjective.
A masterful resource I'd recommend is Alan Weiss' book, "Million Dollar Consulting".
Otherwise, dig right in like other said and if it makes financial sense, perhaps invest in a business coach who can help you along. Nothing too intense, but someone to keep you tracking and ease any anxieties.