Theoretically yes, but remember, you're much bigger than a housecat. There is no such size advantage against a lion. Though people have chased them away by making enough of a racket with pots and pans.
Leopards attack weak gorillas. They're very wary of male silverbacks. There is a huge size variance among adult gorillas, and they're the most sexually dimorphic apes.
They're too structurally robust for feeble humans to defeat without using weapons. Try punching this skull-
or applying an RNC to this neck
That said, a strong human athlete on PED's could beat a small female gorilla. No chance against a healthy silverback.