I hope that your trip is going better than you could have imagined! You received great advice above from Hibee, so remember that in the event you do run into a challenge...you will have your coping skills to draw upon.
But hopefully and likely you will be to engaged in having a great time with your family to be bothered by anxiety while you're away!
Check in when you can.
"Courage is not the abscence of fear, it is feeling afraid and doing it anyway!"
"Worrying does not empty tomorrow of its troubles...it empties today of its strength."
Corrie Ten Boom
Panic Syndrome recovery due to CBT