It doesn’t hurt to retake the assessment, many people take it a second time and find that they resonate more strongly with the second result. Once you’re certain which guild you belong to let me know and I can direct you to your guild leader(s) and the introduction page for your guild.
To get started here on the forum make sure you read the initial post of this thread and the forum primer linked there, as those will give you the basic rules and info for getting around. Once you’ve done that you can start getting involved in our many discussion topics such as currently reading, hobbies, and pets!