The wrong bus
Your first mistake was getting on the A53 bus, the one that goes crosstown instead of to where you're going.
Mistakes like this happen all the time.
The big mistake, though, the one that will cost you, is staying on that bus.
I know it wasn't easy to get on the bus. I know you got a seat. I know it's getting dark outside. But you're on the wrong bus, and staying on the wrong bus won't make it the right bus.
If you really want to get where you set out to go, you're going to have to get off the wrong bus.