Your floats are flyable. As long as the noses of the floats don't get into the water, they won't cause a problem. If they DO go into the water, they will act like a popping lure and throw up the biggest bow wave you ever saw. They should have been rounded up from the bottom of the nose block. Not pointy-but rounded.Other suggestion about adding a block to the front was a good one, too. Certainly you don't have to scrap them and start over.

Taxi with up elevator and judge your height on landing by how far your plane is from its reflection in the water. Flare when landing just like if you were landing on wheels. Keep the nose up.