Anxiety

This is strange. Strange feeling.
I've finally got one thing I've ever wanted in life. I've been dreaming about it and I know I was born for it. It's been my calling. And, I've got the precious opportunity.
But now I'm scared. The fact that I'm leaving this country for 2 years gives me the anxiety. Leaving my friends & families... normally I wouldn't care. I love travelling. I am independent and I was raised to be independent. But what if something bad happens to them and I'm not there? This feeling is killing me. But I know that I have no power to change anything. I just have to accept it.
I'm scared. Never been scared for this before.