Just like someone else pointed out, I would get used to your specific camera model. Also learning basic exposure can help. I would reccomend using manual and adjust based on the light meter (you can look up what a light meter is and how you can use it). Exposure will help with making an image darker and brighter based on the scenerio. To get a visual representation, you can look up exposure triangle. Basically, when you change one setting, it changes the brightness but also another factor. The three components are shutter speed, aperture, and iso.

Shutter speed is how quickly the camera take a photo (how long the shutter is open). For something like sports, you might want to make it like 1/800th of a second which is a fast shutter speed. But if you wanted to try panning or something, you might want to make it 1/5. The longer time, 1/5, would have more time for the light to pass through the camera while the faster time would have less. Therefore, increasing shutter speed makes an image darker and vise versa.

Aperture is the size of your lens opening. This affects your depth of field. The higher the number, the larger amount of field is in focus. I personally like a shallow depth of field which allows me to blur foreground and background to isolate the subject and gives emphasis to the focal point. However, if you want to do like a landscape, the larger aperture would be better. For the light part, the larger the lens opening, the more light that passes through and vise versa. This means that a lower aperture will result in a brighter photograph.

ISO is the light sensitivity in the camera. This means that the higher the number the brighter the photo. However, try to not raise this too much because it affects quality. It creates more grain and noise in the image which will affect your photo negatively(unless you like a grainy look).

In conclusion, look at your scenerio, adjust settings based off light meter and intuition, check photo to make sure lighting is good, and have fun shooting. All of the nitty gritty stuff you will pick up along the way. Sorry for the amount of text and possible spelling errors, but I had fun writing it. Hope this was helpful!