Qualifications
You've got some schooling ahead of you. That said, you'll be studying a lot of music, so that should be right up your ally. You'll likely need a master's degree if you want to be a orchestra conductor—so better be ready to get your study on (source).
Become an apprentice in the orchestra and learn from a senior conductor. It takes years to form bonds and relationships that will help you gain the experience you'll need to be the leader of an orchestra.