Does orthodontic treatment really make teeth become evenly aligned?

I don't know much about orthodontics, so I have a few questions.

I was born with a severe malocclusion.

Until now, I just lived thinking it was okay to draw it.

But I think many people have seen the effects of orthodontic treatment.

Suddenly, I'm interested. Orthodontics involves using braces to straighten teeth.

Are you forcing the movement of the teeth? And then, a slight...

Can I also achieve cosmetic effects? I'm suddenly thinking about doing it.

I'm getting more worried. I hear this also costs a lot of money.

It's a procedure that makes me think about many things, oh dear ㅠ