If you cannot get someone to buy a sim & mail it to you before your trip, inquire at your hotel or with your airport transport - either one of them may have cell phones to rent. Or bring a laptop and only do chat/email for the first two days. Another option is International Texting on your AT&T phone. Not as good as talking but still much cheaper. I have Verizon and I think it is 50 cents to send and 25 cents to receive. Contact your cell phone carrier so you will know exactly what the costs of calls/texts will be.
Lastly, but most importantly - DON"T STRESS! That defeats the purpose of your trip in the first place. It will be fine. It will all work out.
Funny how when we travel to get away from it all, we work so hard at trying to take it all with us.![]()
PEACE & FULLJOY!!