I’m 16 and want a casual job in Perth. (No prior experience)

I’m a 16 year old (17 this September) who is currently looking for any casual job. I’ve tried multiple businesses like macca’s, hungry jacks, spudshed, Coles, woollies, and IGA. I’ve tried all these a couple of times and I’ve pretty much always been ghosted. I’ve seen a lot of my friends get jobs easily so I’m wondering what I’m doing wrong. (I do have a resume). I did notice that many of them got jobs because of connections with people in that business. If anyone is looking for casual employees (10h per week) near Piara waters(within 5km) please drop a comment below. Any tips with getting casual jobs easily would also be greatly appreciated.