How do I know I have enough room to back down driveway?

MFL wrote:
You are right to be concerned, as this is not the best backing situation, especially for a beginner.

Jerry

I respectfully disagree.

A 30 wide street, a 14 wide driveway and plenty of room for overhang to swing. I would venture to say the majority on this forum would love that much space.

When's the last time you seen that much space backing into a campsite?

The OP's lack of experience is the only thing that makes backing into that driveway challenging.