Rabies query. I completed 10 years back!

Hi... i was bitten by my pet dog in my nose 18 years ago.. and that dog died too within 10 days and was not vaccineted.but we took it to vet when he was ill and the vet told he is suffering from fever...i never informed my family about that bite..again 10 years back i got bitten by another pet dog of mine. this time i took 5 rabipur injection as suggested by doctor and also cleaned the bite site from hospital.again 8 years back i got bitten by my cat and took 3 arv and discontinued it as the cat was healthy even after that.again 3 years back i took 2 shots of arv as my neighbor's dog scratched me.i only took 3 after 10 days this dog was healthy and still living so i discontinued the course... again 1.5 years back i got scratched by my pet cat so took 3 arv and discountinued it as the cat was healthy and still living... so my question is that even if rabies virus entered in me by the first bite 18 years ago the virus should have been destroyed by the arv course i completed 10 years back