Let's look at the positive here. One, you already KNOW what you need to do, because you've done it before, right? So you have the experience of having a plan that WORKS, all lined up. A major plus, to be sure!
Two, you stopped this gain before all the weight you'd lost came back. That is a VICTORY. Everyone falls down from time to time - the question is whether you get back up, or just let yourself languish on the ground. You are getting back up!
You've got some challenges, sure - being in a strange country, life changes - but you CAN overcome them. Just get right back on that track and KEEP GOING...you can do this! As of RIGHT NOW, you are officially back in the game.
Keep on plan, keep posting here, and just like before, the pounds WILL come off.