Ah, nothing like a scare to stash away in the diary to recount to the grandkids.
Unfortunately, Green Point is probably about the best spot on the eastern side of the bay in a northerly, although it looks as though it was still pumping through at Rye today, which would have been safer but a bit of a drive.
My best piece of advice is always try to stay upwind of most other sailors and don't go out further than where most people are gybing. Otherwise you're on your own. Go too far downwind or too far out the back, and you might not be seen.
I would find it hard to believe that any competent sailor wouldn't go to the aid of someone that they see is in trouble. Apart from being one of the laws of the sea, it's just what we do, and that's one of the things that makes this sport special.
At 30kts+, today would have been (a hoot) quite challenging, so don't feel bad about not handling the conditions. Best thing to do isn't to be scared of Green Point, but at the next opportunity, ask if anyone is prepared to keep an eye on you for a while. I've done exactly that when getting back on the water after shoulder injuries (on several occasions

) Or even better still, contact me to arrange a "business meeting". Happy to leave the office whenever I can. Watching it fron the office window ain't quite the same.
PS. Silly, silly me. I've just read your profile and found out that you are female. Ay carumba. You will have absolutely no problem getting anyone to look out for you. Chivalry certainly is not dead in this sport, if you don't have any objection to reaping the benefits of it!