How do I braid my own hair?

Hello,

I dance in the club and for performances it has now been agreed that we all have the same hairstyle.

We braid the hair along the head, but only the front section. We then gather it into a small braid at the back of the head, leaving the rest of the hair loose.

My sister dances in the same group, and when I do her hair, I think it looks pretty good. The different braids on the left and right were intentional to test which one would work better.

The problem now is that I just can't do it myself. I can section my hair appropriately and start braiding, but it always ends up too loose. Like, very loose! This means it doesn't look good and doesn't hold as it should.

I've included two pictures below. It's supposed to look like the person with brown hair (sister), but for me it always looks like this (blonde hair).

Unfortunately, she can't braid hair, and my mother can't do it either. Since some members of our dance group can't, we'll get everyone who can get it done at home, and we'll do the rest for each other. But it would be quicker and more relaxed if more people had it. Since I can do it with other people, I just think I can learn it quickly.

HOW DO I CHANGE THIS?