Yes, you can use the word "for" as a conjunction in place of "because" or "since." I wanted to travel the world, for I have always found other cutures to be interesting. I wanted to travel the world, because I have always found other cutures to be interesting. I wanted to travel the world, since I have always found other cutures to be interesting.

Yes, your sentense is correct. "For" can sometimes have the same meaning as "because". because = for the reason that for = because of or as a result of something

For is not used that way so much anymore. So, it is correct - but not really done anymore, unless part of a unique style.