credits, writing and too little experience, help meeeeeeeee!!!!!!

Hi everyone!

(sorry in advance for my english in case of errors but I'm Italian)

I am editing a film and working on the credits. In the credits there are several clips that take up the whole screen, with some characters from the films inside.

I would like to write the credits by hand, but showing the 'writing process'.

Let me explain: I would like the final effect to look as if I were writing at the exact moment when the viewer is watching. The words have to be composed by hand and showing the process.

I don't want a 'curtain' effect, so that the words are slowly revealed, but they must be written in the very moment. The writing will be my own, done with a graphics tablet.

Thank you and I hope I have been clear enough, I hope someone can help me! 🙂

Chiara