@speakdatruth44 – Once your hair is at least 3 inches long you can start making dreads by backcombing. This will tell you how (you will need some time and a friend to do it).
If you have nappy African hair, then you can start dreads once your hair is ½ inch thick by using the twisting method from that same link:
“Instructions: Hair should be sectioned into squares. Square sections make round dreads. Between 1” and 2” squares works well for most people. Smaller sections make thinner dreads. As you section the hair you can secure each section with a rubber band. When the whole head is sectioned twist each section clockwise using a comb to snag the hair at the ends and twist. As each section is twisted dread wax should be worked in to hold the twists. Thick waxes without petroleum hold the hair much better when starting the dreads. After the dreads mature thinner waxes can be used to add fragrance and sheen. Rubber bands can also be used at the roots and tips to hold the hair for the first couple of weeks. Be sure not to attach the rubber bands too tightly, nice and snug will do the job just as well and should not break any hairs. Hair should be twisted by hand regularly to help it lock up.
Dreads can also be started in short black hair without sectioning by hand. The hair can actually section itself. To do this you need short curly African textured hair about ½” thick. Take a soft bristled brush and rub it gently in clockwise circles on the surface of the hair. As you rub the hair will magically form little nubs or balls of hair. These little nubs can be twisted by hand into dreads. Twisting and working in a little bit of thick dread wax will help them hold together and mature much faster. The nice thing about these sections is that they are chosen naturally by the hair and for this reason they dread nicely by themselves as they continue to grow.”
I have seen a few folks with this done. It looks nice and neat if done carefully, and then grows out and continues to form dreads naturally.