Afraid to travel?

I have been traveling solo to English speaking countries for more than 30 years and the last 10 I have tried to travel and live in Italy with only a basic ability to speak Italian.

Now that i have an opportunity to travel more and perhaps become a true expat, why don't I sell my house and travel?

Today i occurred to me I may be afraid!  I have never thought of this before.

Afraid of not having a home base to return to.
Afraid once I take this step (selling everything I own) I will not have any other excuses NOT to travel.
Afraid of this REALLY being a solo trip.

Are you afraid to travel?