It's fun getting a new camera but daunting learning how to use it, especially if you've switched manufacturer. Wading through a manual is heavy going, and not always as clear as you'd like.
Go to YouTube and search for your camera, and you'll find a tutorial to help. People like Tony Northrup and Michael the Maven do in depth tutorials on all the camera features. Many other YouTubers will give guidance on things like 'back button focus' or exposure bracketing on a particular model.
You can also find reviews on a model you may be thinking of buying, if you need help choosing