It seems that you want to continue your sentence. So it's better to say "vaghti ke" or "zamaani ke" or "hengami ke" instead of "ye vaght"

Bale doroste. Yes it's correct.

If you want to continue your sentence, you should say: Vaghti ke (hengami ke) kharej az keshvar budam .... >> when I was abroad ....

If you want to continue your sentence, it is better to add "ke" before "kharej". Also you can write your own complete sentence in English and I can translate it better. In relation to "ye vaght" and "vaghti" and etc, I would use "ye vaghti" if I wanted to talk about only an event that happened when I was abroad and "vaghti" is better for a routine case that usually happened.