Roadmap to Renewal
Emily Stimpson has laid out an excellent Roadmap for Renewing the Church. The only thing I'd add (probably under Emily's Point #1: Learn the Faith): become familiar with the documents of Vatican II. Read them. Learn them. Know them. Make them yours.
John Paul II and Cardinal Ratzinger have both pointed to these texts and the knowledge of them by the faithful (that includes all states of life in the Church) as the key to authentic renewal in the Church.
Take their advice.