I am so nervous being a stepmom. I never had a good relationship with mine. My stepdaughter messaged…

I am so nervous being a stepmom. I never had a good relationship with mine. My stepdaughter messaged me tonight and I am running out of questions to ask her?!!! We don't talk much cause my stepdaughters are shy and so am I. They live out of state with their mom, how do I get a good relationship with them without overstepping boundaries?!