A degree is a great start! What works well is successful campaigns to spread awareness - get people to sign up for a social media account, contribute to a Kickstarter, raise money for charity. Interning for a medium size firm as their marketer will give you a chance to make mistakes, learn basics of email and social, and get some small wins to get paid positions down the line. Hop on a call with me and I'd be happy to help you plan a career trajectory.