Step 1:
This long paper is made of five standard printer / copy papers taped together into one paper of 20x150 centimetres.
Fold in half over the black line.

Step 6:
Fold into an angle of 45 degrees again, all four parts get the same length.

Use tape or glue to keep the model in the right shape

Step 5:
Fold into an angle of 45 degrees.

Step 2:
Fold in half two more times, then prefold in half one time

Step 4:
Fold into an angle of 45 degrees, both parts get the same length, see purple lines

Step 3:
Fold the part on the right into an angle of 45 degrees (Make the same folds on the backside)

Step 10:
Fold over these two lines, the picture below shows how it's done in the video tutorial

Step 8:
Squash-fold.

Step 9:
Fold the hanger downwards.

Step 7:
Make an outside reverse fold (make the same fold as the line on the left at the layer on the backside). Use the center of the model as guidance, see arrow and dot.

Step 16:
Fold over these two lines, use the edge indicated by the arrow as guidance.
The picture below shows how it's done in the video tutorial

Step 15:
Fold the strip straight upwards.

Step 12:
Make an outside reverse fold (make the same fold as the line on the right at the layer on the backside)

Step 11:
Fold over these two lines.

Step 14:
Fold the strip straight downwards, use the edge indicated by the arrow as guidance.

Step 13:
Make an inside reverse fold (make the same fold as the line on the left at the layer on the backside).
Use the center of the model as guidance, see arrow

Step 17:
Fold the remaining part of the strip around the hanger