Replace feeling illegitimate, with a sense of being centered in God's life-giving voice.
The Father's Voice
"I am your Father and you are My son (or daughter); hear My voice and know that I delight in you."
Flood your heart with:
Mark 1:11, Zephaniah 3:17, Matthew 4:4, Isaiah 55:3,
1 John 3:1… and more!
"Your earthly Dad didn't speak life into you and neither will God!"