Persian/Farsi/Dari/Tajiki

I'm 19, about to enter my second semester of college, and an air force recruiter contacted me, saying that Persian/Dari/Taijiki, Pashto and Urdu translators are currently easily employed by the government. I have a few questions about this:

1. How similar are Persian, Dari and Taijiki? If I learned Persian (the only one which I have access to classes) would I be able to understand the other two?

2. Has anyone ever made a living translating and interpreting speech and text? How is the work, what is your normal workday like, and how much do you get paid?

3. How hard is Persian to learn for an English speaker? What are some tips I should remember?

If you're 19 and want to learn a totally new language to such a level that you can freely translate and fluently interpret it, then you're looking at a huge commitment (you're also already past the "prime" for learning languages, which will make it more difficult).

So I suggest you choose your language wisely. Persian might be the language in demand right now, but in ten years..?

>>2
uztranslations or uz-translations its a blog you'll have to google for the correct url

http://uz-translations.net/

You're welcome!