I am so sorry to hear of this extreme behaviour.
"By this all will know that you are my disciples, if you have love among yourselves." Well the JWs certainly take that scripture literally, they love only those among themselves.
It it is way extreme to destroy your baby pictures... I mean what if you came back? (Not that you would, but still -- What if??? How could she do such a thing?) That's just total dispensation of existence, another earmark of a cult. So very sorry.
I have many many sorrows and regrets in my life, and with JW issues, but for my mental health, I've learned I must protect myself and my health including my emotional state. It hurts us to suffer emotionally, but sometimes there's no avoiding it. It sounds like you have your own lovely family who truly loves you and who truly appreciate you. Let them be your focus and joy. Peace.