How to Advocate?
An advocate works by listening to you and helping you sort out what you want to see happen.
They can support you in speaking up for yourself in meetings and others. 
They can help you write a letter, make a complaint or telephone people.
They can encourage people to listen to what you say and respond to your views.
They can get information for you to help you make decisions that are right for you.
They can support you with your rights.