Threading the eyebrows

I watched this Youtube post and tried to imitate it. I think I did something wrong, because my eyelids were seriously damaged after this. I mean - I could see blood, the tiny hairs were not pulled out at the right angle. My eyelids have hurt for two days now...
Glittering eyeshadows help to hide the puffiness, overall redness and incrustations. I presume it would have helped had I had just 2 more arms to hold the skin on the eyelids more firmly.
What the hell did I do wrong? On the videos the people just slide the thread on the skin and the hair is removed.
I'll stick to my tweezers...

(3 days later)

Uus või pigem igivana meetod kulmukarvade kitkumiseks: võtad veidi niiti, seod otsad kokku ja hakkad "vurri mängima". kahjuks ei tõmmanud see meetod mu kulmukarvu pärikarva välja ja jättis mu laud veidi veriseks (karv tuli ära koos tillukese naharibaga - ei soovita). Seda on vist parem lasta kellelgil teisel teha, sest mõistlik oleks laugudel olev nahk selle protseduuri ajaks pingule tõmmata. Karvaeemaldusmeetodina on see väga efektiivne.