Biting 😡🤬

My 7MO is breastfed, has 4 big sharp teeth and has been non stop biting me during feeding for around 2 months.

I can cope with a small accidental nip or a play bite but just lately she’s been biting so hard at every feed, she has cut my nipples open on multiple occasions.

I’m not ready to give up breastfeeding but my nipples are in agony and there’s no let up and I’ve started thinking about switching to formula earlier then the year I wanted to go for ☹️

Does anyone have any tips or advice?

Thanks in advance