Have you been drawing in Photoshop for a long time or did you switch over relatively recently?
The logic in Procreate is pretty much the same, but honestly everything is set up simpler and faster. The main difference is that in Photoshop you're digging through menus, while here everything is right at your fingertips. Brushes open with a swipe, layers and their blend modes are visible on the right side immediately, there are no endless panels. If you're used to Photoshop, the first shock will be that a lot of your usual tools just aren't there - but you don't need them, because Procreate is built specifically for drawing, not for general graphics work.
You'll definitely get confused with brushes at first. Photoshop has huge libraries of ready-made brushes, half of which nobody uses anyway. Procreate comes with a solid basic set, and that's enough to start with. Open the Library (brushes on the left), and then you start to feel what's there and how they work. Brush customization here is more intuitive - you don't need to dig into "advanced parameters," you just tweak sliders. Pro tip: don't try to transfer your habit of picking from a hundred brush options right away. Grab 3-4 basic brushes and work with just those for two days - your hand will get used to them, and then you can explore the rest.
Touch gestures in Procreate also take some getting used to. Undo isn't Ctrl+Z, it's three fingers swiped upward. Zoom is two fingers rotating, like everywhere else. It'll feel awkward at first, but after a week you'll forget about Photoshop shortcuts. Watch yourself a 10-minute video on the Procreate interface tour - you don't need a full-hour course, just check out where things are, and you'll figure out the rest on your own.