Take Heart!
From Christian Vegetarian Association (CVA)

Why Cow’s Milk Is Not Meant for Humans

Sometimes we hear something so often repeated that we start believing it. This is the case of cow’s milk and calcium. We have been told since birth that cow’s milk, rich in calcium, is ideal for our bodies. Fortunately, science can explain clearly now why calcium in plant-based foods is more efficiently absorbed by our bodies than the calcium in cow’s milk, and why cow’s milk is simply not good for our health.

Please visit Explain Like I'm 5: Why Is Dairy Not the Best Source of Calcium?

When we recognize that cow’s milk is perfect food for calves –not even for grown up cows!—and not for humans, we start to see that calcium and other nutrients can be found in plant-based foods and in better quality.