Nurture your brother. Show your love for him. Lean on him when you need it, and allow him to do the same with you. Take the time to celebrate milestones and accomplishments in each other's lives. Be honest but kind at the same time, speaking words that help and heal. Allow each other room to breathe, yet stay close enough to know when a brother could use your help- before he even has to ask.
I love you, Maria del Carmen.