Color displayed does not reflect actual colors? (read description)

Hi everyone, I'm not super tech savvy, but I give it my best to describe my issue;

I work in Photoshop for my online class, and most of the time my teacher has been saying my projects were pretty saturated. I didn't understand why as my screen shows the colors to be pretty light (I'll post some examples here). Later when working on an assignment, I switched to another computer and saw one of my projects; I had to redo all the colors.

My question is: is there a way to fix my display so that it's more reflective of what the colors actually are?

Thanks!

ex: 1 is my final, not sure it's super dark or not, but on my display it looks quite on the pastel side, especially 2 where the colors are super bright, but what I initially wanted after switching computers. 3 was what I originally started with, thinking the colors were brighter, but apparently are dark and don't look very good.

I think a good thing to try would be to reset your monitor's and graphic card's settings to defaults and make sure they are not using any "movie" or "game" or "reading" mode/presets. These days the default configuration should be fairly close to "okay"

Also, it can depend on what type of monitor you are using - some different panel types are better at displaying colors/contrast than others.