Hey Danni! I realize you’re in the Southern Hemisphere so I went around and found some resources for celebrating Samhain in the Sourthern Hemisphere. If you’re not subscribed, Owlvine Green is a witch that lives in Australia and has a YouTube channel. Here’s one from a few years ago where she talks about her Samhain experiences.
She also did a video where she recommends other Australian channels which, I’m not sure if that’s where you are, but I’m sure there are some resources there for information.
On Spells8 there is a post about the Sabbats in the Southern Hemisphere that you might find helpful!
All in all, I think the usual ways of celebrating Samhain would still be acceptable. Here are a few more sources for celebrating Samhain. You kind of have to remember that Halloween is a derivative of Samhain, and while the rest of the Southern Hemisphere isn’t celebrating Halloween, you are still well within your right to celebrate Samhain!
You might also like to create an ancestor altar to honor the dead at this time of year. Here are some resources for that, too!
You may even feel like creating your own traditions. I know it can be hard when the original holiday doesn’t line up with your seasons, especially since Samhain is very much a Celtic holiday. I think with a little ingenuity and some intuition you will definitely find a way of celebrating that works for you.