so you suggesting just make my own font?

I will try to make it simple as I can.

So I want to start a clothing line called example logo ( Japanese Flower ) which the font. And I want to make a shirt, on the front of that shirt is a picture of a flower & I want to say Beautiful on top of the shirt but the font I use for the word Beautiful is Chalkduster, which I downloaded from here.
So if Im going to sell that one style shirt in boutique or future big retail what do I have to do to make it A ok! need instructions.

But if the process is to big is it best to design my own font and use that on my shirt that can be similar to what I like from Chalkduster.

Hope anyone can help me with this question.