Until you calibrate your monitor editing and processing is pretty useless. It's a shot in the dark.
Monitors out of the box are designed for internet and gaming use. They are extremely bright with high contrast. For starters you can turn the brightness and contrast down to somewhere between about 70% and 80%. Yep, it will look dim. You want white to be white, but not LIT up, black to be black and the shades of gray to be evident.
Monitors also tend to error to the cool side which will make you think your images are very blue. You'll then warm them up and make humans look like oompa loompas.
There are MANY images on the web that are designed to help you get somewhere close in hand calibrating. It'll work pretty OK, but if you want your photographs to print anything like what you are seeing on your computer you need to get a calibrator.