The combat is way too easy on normal difficulty - this is fine if you only want to experience the story but very understimulating otherwise. I honestly suggest trying to play the game on Death March (but turn it up after the first time you fight a pack of Ghouls, they’ll fuck you up). On Death March you’ll be incentivized to interact with the game systems: Alchemy, Signs, specific monster weaknesses in the bestiary. All this really makes you feel more like a witcher, which in my opinion enriches the gameplay.

Experiment with builds - respec potions are fairly plentiful so don’t be scared to put points into stuff. Don’t underestimate Alchemy, but make sure you visit all the herbalists you can find to purchase recipes, the difference between basic alchemy and the upgraded recipes is massive.

Play Gwent, and check every single store you come across for cards and instantly buy them all. W3 Gwent is fantastic and half the fun of the game.

With the story calling back to both the two previous games and the books it’s not a bad idea to try to find some story recaps on YouTube of what has happened earlier in the story.