I don’t want to repeat what PrintDriver and HotButton said, so I’ll just say I completely agree with what they wrote.
You can calibrate monitors to some extent, but at best, what you see will be an approximation of what you’ll get when something is printed.
There will always be differences from one display to the next. Really, though, that’s not as big of a deal as it might seem since your brain will make the adjustments and compensations for you.
So what do I mean by that? Go outside in the middle of the day, and the overall color of what’s there is different from what those general colors will be later in the afternoon as the sun moves to a different position in the sky. Walk inside a building with artificial lighting and the overall color shifts enormously to green or yellow depending on the type of lighting. You don’t really notice these shifts because your brain compensates for it as it interprets the signals it gets from your eyes.
This effect was especially well demonstrated back when film cameras were the norm. For example, shoot a photo made for outdoor sunshine in a room full of fluorescent lights, and you’d get a print that was noticeably green. In other words, the camera and film couldn’t compensate for the difference, whereas our brains do without us really noticing.
What I’ve found to be important when working with color is, like HotButton and PrintDriver mentioned, is to rely on color standards and believe them more than eyeballing everything.
It’s also important to get used to the displays you’re using, which gives your brain some time to make those mental adjustments between what it sees on the display and what it knows will print the way one expects. Each and every time I buy a new display, it takes a couple of weeks to get used to it and to trust the way my mind is interpreting what it sees. Eventually, though, I always get used to it.