Hi , thank you all for the helpful responses. Characteristic looks very interesting and is basically exactly what i need. And i completely agree with what Derek Boettcher said about using Text Animator , but text animator does not really work in my case since all of the letters are different shape animations that are not exactly parametric- most of them involve masking parts of letters and adding additional elements and animations and other stuff that can only be done in a composition.
Thank you all for helping me out:)