Drawing a wolf can be difficult, especially for those that can’t draw. You will probably do better if you can already draw another kind of dog, since wolves are canines. There are plenty of ways to learn how to draw a wolf, and at this point, you should probably look one of them up.
One way to learn is to buy a “how to draw” book from a local craft store. You can flip through it to make sure it offers a couple of wolf tutorials. Another way to learn is to look it up online. There are often detailed tutorials on YouTube and on drawing sites. These will often have more information available than a “how to draw” book.