Long journey

It took about 2 hours to get to the client’s office. (Normally it must be 1 hour)
I left A31 at correct point, which is about 10-15minutes from the office in Poole.
But I reached Bornemath (I’m not sure the spelling) instead of Poole.
I don’t know when I made a mistake.
I asked the way at petrol station once. Even after that, it seems that I made a mistake.
Finally, a kind old gentleman took me to the destination.
I just followed his car.
I don’t have confidence to reach there by myself tomorrow.(T_T)