She does have to evict you, but it has to be for non-payment of rent, or violation of terms of the lease, or non-renewal of the lease at the end of the term, not because you refuse to eat with her. She has to give you proper notice. Also, legal aid usually represents people involved in evictions, and you might well qualify. At the end of this, I will give you links to the Legal Aid programs in Florida.
That said, you may want to consider the possibility of finding somewhere else to live, as it sounds like an unpleasant situation, and it is not good for your child to see adults screaming and fighting like that. Also, you don't want to leave and leave your child, or she may call DCF and say you have abandoned your child, then try to keep the child. So you may want to think of alternative living situations.
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How sad. Your aunt will have to evict you not just tell you to leave. Whatever you do never leave your child with her b/c she may say you abandoned the child and she will file for custody. I suggest you find another place to live - this sounds like a controlling situation and is not good for you or your child. YOu certainly qualify for legal aid help so head on down to one of the offices in your area.