RE:If your new hereThanks for the warning.
Btw. if you want to write "If your new here" you should write it like this "If you're new here" or "If you are new here".
Your refers to:
pronoun (a form of the possessive case of you used as an attributive adjective):Your jacket is in that closet. I like your idea.Compare yours. one's (used to indicate that one belonging to oneself or to any person):The consulate is your best source of information. As you go down the hill, the library is on your left.
(used informally to indicate all members of a group, occupation, etc., or things of a particular type):Take your factory worker, for instance. Your power brakes don't need that much servicing.
or check this out:
https://www.lawlessenglish.com/english-mistakes/your-vs-youre/