You must be consistent... in Spanish
You must be consistent, special, free and independent!
Is it ¡Tienes que ser invariable, especial, libre e independiente! ?
One can be coherent without being consistent or consistently coherent. I would use the direct translation of Consistente.
The rest of your tramslation is good!
I would say :
Hay que ser coherente, especial, libre e independiente!
When I saw the question, I thought it meant " You must be consistant to learn Spanish". Which I think is true.
To be consistent: ser coherente
Usted tiene que (or debe) ser coherente, especial, libre e independiente!