My brake flex hose is worn I need to replace it

I am attaching the info from the manual on how to do this. However, you will need to bleed the brakes so here is a guide that will help with this:

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

Below is the process from the manual. Let us know if you have other questions. Thanks