Girl... If your BF then no need for water as breast milk comes in 2 types.. fore milk is thinner milk like water for thirst and then after that the milk gets creamier and thicker for hunger... Formula only come in 1 thickness which is why bubs generally go longer between feeds(it fills them up more) which is why formula fed babies need water.

Water wont hurt her but its not a necessity. I was told to offer water during night feeds to discourage waking at night but were not doing that.

What naive thinking. I am so mad at myself. I wondered why she wanted to feed during the night so much. I feel so guilty for not listening to myself in the beginning. I should have followed my motherly instincts and ignoring everything and anything else.
Just ddnt understand this part... Why are you mad at yourself...