I recommend a great book: Leaving Earth.

For instance:
When Pogue threw up, upon arrival at Skylab, Carr Gibson and him decided not to tell Houston. Unfortunately, they forgot an automatic tape recorder was recording everything and Alan Shepard himself reprimanded them and they had to admit their mistake. From then on, relationship with Houston never was relaxed. The astronauts were clearly trying to be careful with what they reported. But Houston kept giving them experiments to perform and they couldn't follow until they finally decided to get one day of rest and settle the matter. All this because Pogue was sick.

Imagine a spaceship on its way to Mars and the crew has an embarrassing issue it wants to hide from the Earth. This could poison the whole flight.

The book is mainly about the space stations and the Russians have a lot of experience about them, so there are more stories about the Russians.

If you've read Dragonfly, you'd remember how difficult it was to select US astronauts to spend months aboard MIR. The Russians have always emphasized on the psychology between the crew (that's why Leroy Chiao was removed from the next ISS crew; that's why Malichev was removed from the crew with the first french in space, Chrétien: incompatibility). A very long flight means much more introspection, human interactions than during a short flight where all the movements had been rehearsed many times, during training.

Raoul