Student or Learner
How are they different?
1. in the end vs. at the end
2. in the middle vs. at the middle
finally, ultimately ;after something has been thought about or discussed a lot:
We were thinking about going to Switzerland, but in the end we went to Austria.
at the end
a) the final part of an event,a story;
at the end of the week
b) the part of something that is the furthest away from its centre
That's his wife sitting at the far end of the table
at the end (of the day) UK
something that you say before you give the most important fact of a situation:
Of course I'll listen to what she has to say but at the end of the day, it's my decision.
in the middle (adv.)
the middle or central part or point : "in the midst/middle of the forest"
(in) the middle of nowhere INFORMAL
describes a place far away from any towns and cities and where few people live:
He lives in a tiny cottage in the middle of nowhere.
Hope these examples helped.