Sounds terrible.
I went from Basildon to Epsom the other day and it took about 3 hours 30 minutes.
3 hours 30 minutes to do about 40 miles and not even guaranteed a seat.
It takes just over 2 hours to go London to Paris in a train…
Government wants to do the High speed rail vanity projects but doesn’t want to actually fix the regular trains.
Need to renationalize the railways and modernise them so they are actually fast and efficient. Currently all we are doing is putting plasters on engineering work done over 100+ years ago because tearing down and modernising it is too expensive. Also government wants to remove all cars from the road but wont do the most obvious thing and improve the railways and reduce the cost so it actually becomes a viable alternative. All the government is interested in is putting everyone on bicycles as that will solve the problems on the road as adding more crap to the roads is the answer.
/rant
Seriously though have fun just make sure to hold onto to any valuables.
Edit: seeing as your going from Norfolk to Yorkshire I wouldn’t be surprised if they still use steam operated trains.