You can reach the position of Marketing Manager with experience & skills which is required for the job. Here are a few of the skills every marketing manager needs to succeed:
Traditional marketing skills

Writing and communication - Marketing managers need to write press releases, blogs, and advertising copy.
Creativity - Many companies value creative thinking to build new campaigns with unique hooks.
Negotiation - Media buying requires negotiating with vendors for a better price or placement.
Budgeting - Marketing managers must stick to a budget and prioritize allocation across multiple channels.
Planning and execution - Long term planning and follow through is crucial to launching marketing strategies on time.

Good Luck!