You've been carrying that burden for a looooong time.
You ARE God's daughter. That reminded me of one of my favorite passages in scripture. It's in Psalm 45 and it says we are Daughters of the King, ALL GLORIOUS WITHIN.
Can we grab hold of that Truth?
And here's one of my favorite songs. It makes me cry every time I hear it, because it has so much meaning for me. Your post reminded me of it.