You sound like you were meant for this place!
About your Dad, I understand more than I can express here.
But the adventure spirit and the call of the road with miles of soul renewing time with ones self is difficult for most people to understand.
It's harder for you because he's your Dad.
The best we can do for those that must answer the call is to love and support their choices and trust they will return to us.
He needs your emotional support to put his soul at ease. That's a hell of a lot to ask of one as young as yourself. But I can see the strength and courage in your eyes.
Check your PM's on this account.