Finish the scarf by wet-stretching it. Try to form it as correctly as possible to perfect, straight edged triangle and fasten it to the surface.
I use headpins for fastening and my large bed or carpet for the surface.
I stretch the wet scarf on the bed and fasten it with headpins.
It would be ideal to leave it dry for at least 24h. I don´t usually have enough patience. Those thin scarves-shawls usually dry within few hours. But to achieve the better form you should let it stretch for a while even after it is already dry.
Try the same pattern with some other yarn!
For example if you use one fold fine lace wool yarn you´ll get very lacy gentle garnment. Then again using some thicker wool yarn you´ll get warm and cozy, useful winter accessory.
Knitting is the best therapy!
Enjoy the pins` gymnastics!