Don't try to be someone you're not when you're not supposed to.
You may be depressed, anxious, sad, mad. Maybe you think, that you want to be like them, but you're not, and that's why you're feeling down.
But have ever you thought, that maybe you're not supposed to be like them? You are your own person.
Yes, you can become a better version of yourself, but you can't change yourself. Stop trying to be something or someone you can't be, stop trying, because you're you, and that's all you need to be.
Don't be your reflection, be you.