Forget about the years of conditioning telling you that you need meat and milk to survive. You can get all of the required nutrients in a vegan diet. In fact, plant foods are better sources of nutrients than animal-derived foods, since they are more easily digested, contain no cholesterol, are lower in saturated fats, and contain lots of fiber and antioxidants . There is a lot of money to be made if people think that they have to eat a lot of meat and dairy. If you consume dairy products, you should be.
Calcium is excreted in urine by animal proteins, which are found in milk and other animal products.
Also, most calcium in milk is not readily absorbed in the body. Dairy products are low in Vitamin C and contain no fiber, but they do have allergenic proteins, animals fats, and pesticides. I eat pastas, salads, tofu, vegetable stir-fry, etc. You truly are not limited when becoming a vegan. The hardest thing may be eating out, but an ethnic restaurant is usually a good choice.