I'm going to go behind my family's back
Is there anything I can help you with?
I'm too embarrassed to tell you so I'm going to approach it alone.
Keeping secrets from family isn't good, but sometimes there are things it's best not to share with them if it's just a short term thing. If it's a major life choice, you'll hopefully be able to share it with them at some point.
Thanks for the encouragement. Maybe I will tell them in the future.
I am glad that you are considering telling them in the future. It is not good to keep secrets in the family. Eventually they come out and they will be upset that you hid it.