Having faith means trusting God. You can do it I know you can. I'm also working abroad and my family is in the Philippines. I worry very much too when I started being away from them. In times when you get anxious, instead of thinking about things that might go on, the what ifs,buts and whys, you pray. Go in a silent room, and pray. When you pray, listen because God will also talk to you. In his words, the bible, there are many things he said for you to be assured that he can take care of all the things that bother you. Give it all to Him. And He will give you rest. He can make all your prayers true. Appreciate every moment, every answered prayer no matter how small. I'm praying for you.. God bless you and your loved ones..