LOL okay i'm going to try & explain this is the easiest way possible.
if you want a think bracelet you have to use more strings... if you want a thin one, obviously you use less.
okay so
step one: pick out as many colors as you want in the bracelet.
step two: make the strands fairly long & cut them all to the same length
step three: tie them all together at the top (leave about an inch of string above the knot)
step four: either tape the knot to the table or clip it to a clip board. (safety pinning it to something works too)
step five: separate all the strands. if you have 4 strings name them 1, 2, 3 & 4. (from left to right)
step six: take string 1 and put it over string 2 making a four shape... then pull string 1 through the loop & pull tight making a knot. you have to repeat that once again, on the same string, the same exact way.
step seven: now string one should be second in the set of strings you have. continue doing the same thing as step 6 to all the following strings. (so if you have 3 strings, do it to all of them... so you make the 4 shape twice & make a knot)
step eight: now when you're done. if done correctly, string 1 should be all the way on the right. now, using string two (which should be the first one on the left) repeat steps 6 & 7 and continue with the pattern.
it should have like a diagonal line pattern when you're done. make it as long as you need it.
if i was wicked confusing & you didn't understand me, i'm sorry. good luck! <3