Step 1:
Take / make a paper strip of  24 to 28 centimeters long.
Fold aluminium foil around this paper strip.

Step 8:
Curve the bracelet

Step 6:
Press / bend the edgy parts into more curved parts, see arrows as example.

Step 9:
Fold the tip straight upwards over the purple line and glue it to the infinity symbol, see arrow.

Step 5:
Use glue to connect both parts in the center, see arrow.

Step 7:
Fold the bracelet into a straight line with the infinity symbol, see short purple line.

Step 3:
Curve one end and glue the tip to the model, see arrow.

Step 2:
Fold in half over the length three times.

Step 4:
Hold the left part of the knot in one hand and twist the right part 180 degrees with your other hand.

Done!

Pictures: Drawing of an Infinity Bracelet and a selfmade Origami Infinity Bracelet