If you did everything correctly, it should look something like this finished one. Once you know what you're doing you can vary the amount of cord used by making the knots tighter or looser and pushing the knots closer together as you go.
A tip for paracord bracelets: If the side release buckle is large enough, you can loop the paracord around them again before you start knotting, to fill in the extra room on the buckle.
The 1/2" side release buckles are a tight fit for this, but will work, and the 5/8" size are just right.
This leaves a two strand core for the bracelet when you start knotting.
Now, you could also have a four strand core by starting with a lark's head on the first buckle end, double wrap on the second buckle end (at your wrist size), run the cord back to and over the first buckle end, and then start knotting over the four strand core.
Or, for a six strand core, lark's head the first buckle, run the two strands around the second buckle (at your wrist size), back to and around the first buckle (now has four strands around), then back to and around the second buckle, and then start knotting around the six core strands.
This gives extra cord in case you need it for whatever, but it also makes the paracord bracelets thicker and more rounded, which I personally didn't care for and that's why I stick with the two strand core. YMMV