I'm a little smaller than you—5ft5 and 125lbs (is that around 56kg?) Anyway, I found that is was in fact possible to have too much volume. But that largely came down to having too much size. Since you're a man, you may not have this problem, but I found it very hard to control larger sized boards. I started on a
8ft hard funboard a few months ago, but fairly quickly found that it was difficult for me to maneuver on a board that size, and also I was often putting dings in it because it was a beast for me to maneuver both in and out of the water. (I think the board had around 64 liters of volume, but I'm not sure.)
When I was consistently catching and riding white water on my own, and starting to be able to paddle into waves, I ended up trying a board that was shorter and had less volume, and I actually found it far easier to use. I think I had been hesitant
paddling into waves when I was intimidated by the size of my board. And the smaller board with about 55L of volume was plenty buoyant enough to carry my weight.
Now, my go-to board is a
6ft6 foamie with 55L of volume and I'm catching pretty much every wave I try for and turning without any trouble. Granted, I live close to the beach and can surf almost every day, at least for 1/2 an hour. But still—the smaller size is wonderful for me.
As for "the biggest longboard you can find" as many people advise for beginners..... Me carrying a board over 9ft is like one of those comedy skits where a person has a ladder under their arm and keeps knocking people over. Really—I'm a danger to all around me! Frankly, I plan to never surf anything over 8ft. Preferably nothing over 7'6. I just dont like it.
Anyway, my board is a Catch Surf Skipper which has
fish dimensions. That company makes a lot of foam boards that perform very well, including fun board sizes and
long board sizes. And they are relatively cheap. I understand if you want to go directly to a hard board. I did as well. But since finding the right sized foamie, I find I never want to surf anything else. At least now for a while.

Good luck and keep surfing!
Daisy