Help on teen fashion magazine project?

For english class I have to do a magazine project and I am doing mine on teen fashion.

The feature essay is the biggest article in the whole magazine. I need to come up with a main topic, and three support points for the feature essay. Each of the support points needs a topic and an opinion about that to create the thesis.

So if that sounds confusing, then really all I need is one topic about teen fashion, like how to express yourself through fashion, and three ideas about that (those will turn into paragraphs).

PLEASE HELP! thanks