I am in a bad situation. I hired a lady to help me with everything basically. She's worked for me since COVID. Lately she's been stealing from me why?

I have been staying with a friend for a few months now. My apartment I was living in for 8 years was ruined by the heavy rain and the ceiling caved in. So they forced me to move into a way smaller apartment than the one I had.
So all my furniture had to be thrown out. And a lot of my things never made it from my old apartment to the new one.
Lately some of my things have been stolen by this lady that has worked for me for year's.
When I ask her what happened to my things she tells me to chill out and she will find them. Only she doesn't even look for them because she knows she stole them from me.
She told me if I accused her of stealing my things again she will quit on me.
She also helps my friend I am staying with because we can't do the things we used to be able to do.
We don't know of anyone else to hire to help us. No one!!!
We cannot survive without outside help. Doing grocery shopping, laundry, errands, etc.
We have been very nice to hear always. She has told me she isn't a nice person and she has done some bad things. She doesn't believe in God and I am a Christian.
I wouldn't care if she left today if I had someone else to help us.
So, she continues to steal from me and if I say anything to her about it she is going to quit.
I don't even know the severity of the things she has stolen from me, but it's a lot. Even some of my clothes.
She goes in my apartment when she knows I am not there, but at my friend's place. That's when she does it.
I know you are going to say to fire her, but we really need someone to help us with living.
Any opinions are appreciated.
Thank you.
I am in a bad situation. I hired a lady to help me with everything basically. She's worked for me since COVID. Lately she's been stealing from me why?
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