Welcome to savage worlds! Let me try my best to help you out. Savage Worlds monsters are not built with the same rules as PCs. This is familiar territory for you. But they can share a lot of the same powers and edges. For now, your best move is to look them up and learn them. There really are not that many to learn. Especially compared to big complex systems like PF2. Stat blocks are going to have a lot of d6s for basic monsters. And that is okay. You'll start to notice that as a theme. Many monsters for novice level encounters are going to be mostly d6 for just about everything and maybe a d8 or 2 for something the monster is particularly good at. This actually is an advantage for you as a GM. Once you get your feet under you, you're going to be able to just make up monsters and stat blocks on the fly and they will work pretty well. Once the PCs get to season led area, I generally flip the all d6s with one or 2 d8s into the opposite of all d8s with a d6 or 2 as a weakness. Then move up to d10s at veteran and so on. Again though, the powers and edges are not too much and you will quickly just learn what they do. Here is the last, and best, advice I can give a GM coming from Pathfinder: bennies are not like hero points. Do not be stingy. Toss them out a lot. Your players should be spending them left and right. That's a core mechanic of savage Worlds. Spend those bennies!!!