I would say, monica, don’t come to orthodox churches. The Fourth Lateran Council, said that there is no salvation outside of catholic church.
You can read it here
papalencyclicals.net/Councils/index.htm
papalencyclicals.net/Councils/ecum12-2.htm#Confession%20of%20Faith
Read it on the confession of faith, it pertains to catholic church, not others.
You should know that.
If your faith is weak (we are faithless sinners, by the way. So is mine. I am weak), visiting orthodox churches would only bring you confusion.
So my advice would be, be without a church for a week. That’s okay. Just pray without ceasing, while you are in another country.
The Desert Fathers, lived in the desert, without holy communion, or confession, or church, for the matter. And they became saints. They renounced all things for love of Jesus.
You can read lives of the Fathers of the Desert, vol 1 and 2, it’s free
archive.org/download/a586049002hahnuoft/a586049002hahnuoft.pdf
archive.org/download/a586049001hahnuoft/a586049001hahnuoft.pdf
Some of them are St. Anthony the Hermit, also St. Paul the hermit, St. Fabiola. They lived in the desert to escape the dangers of the world.
You should know that orthodox churches (despite the name orthodox), pertains to schism.
Schism offends God greatly, because they do not want to be obedient to the Pope, one holy apostolic, catholic church, and doesn’t want to be in unity and obedience to the church
Read this, and your confusion whether you should be orthodox or catholic will be cleared
en.wikipedia.org/wiki/Schism_%28religion%29
You shouldn’t be confused. It is a temptation. You should be catholic, outside of which there is no salvation. Orthodox churches isn’t pleasing in the eyes of God. It is schism. Separating themselves to build their own doctrines. I think even the sacraments there aren’t valid.
Have a nice trip.