That's awesome Monica, congratulations! I have a half-sister that's younger than me, and she doesn't know anything about me. I've tried reaching out to our father (Who has her) but he won't return any contact. She's 17, I guess when she's 18 I'll probly push to contact her instead of our dad.
It's heart breaking to know you have a sibling that doesn't know anything about you. I'm glad to hear there's hope thoughThanks for posting this!