Is it okay to just get sick of feeding...also scared of being bitten?

i'm tired of it too! but not for the sake of my body but for the sake of my sanity LOL..& i simply am just tired of it,my baby is 9 months and i am afraid of her bitting me, i started to tell her no around 7 1/2 mo so she'll understand and she has started to understand, just the other day she started to try & bite! OMG i was so scared and said no... no... & she stopped