I got anti rabies last month and now my cat bit me again. should i get anti-rabies vaccine again?

No: Your cat is safe if you vaccinate her,you don't need to get vaccinated at all if she bits you.just make sure you cat doesn't interact with stray animals.

Still protected: You get about 2 years of protection after completing the primary rabies vaccine series. Your cat is unlikely a carrier, but a call to your local health authority can give you info about the local rabies risk.