Understand where you are coming from- which is exactly my point, which is why I’ve booked a dive with an instructor just for me.
Not a deep or complicated or even slightly taxing dive, but just some more time in the water, with an instructor to feel more comfortable and get used to all the new skills
You're fine, go enjoy yourself. You're doing exactly what you should, and I'm sure you'll have a great time on the dives you've planned. Years from now, after you've had countless dive adventures, you'll be able to offer advice, based on your experience, to new divers you meet and they'll be better off for it.