Noob Painting Question

Question to figure out if I’m using my paint in the right quantities. How many of the little pots of retributor gold does it take to paint 14 models (from the combat patrol)? I primed in chaos black; I’m a few models in and seems it’s taking 3 coats of thinned paint to apply the base coat. I feel like I’m constantly taking fresh paint from the pot and needing to thin it so don’t know if I’m overusing paint or if this is normal. Thanks!