welcome to YT!!
I can tell you from experience that your dog will come around with love and patience, most of all gentleness.
My jack-a-poo would not even let us pet her when we got her so I had to gain her trust by holding my hand open and letting her sniff and I would praise her every time she came near me. She eventually let me pet her and now she is one of the most loveable dogs I have ever had.
So just give your little one lots of praise and love and it will come back to you in time
