If you asked 10 people what "marketing" means to them, you would likely get 10 different answers. You'd probably get a mix of advertising, branding, promotion, public relations, social media, business development, planning, marketing mix and more.
In my mind, marketing is all of the activities and tools that a person or company uses to promote its products, services or ideas. It should include all of the items mentioned above and so much more. So the next time you think about marketing and the tools available to you, don't limit your thinking to one aspect of marketing. Think of the entire gamut of possibilities, and you'll find a wealth of tools and opportunities available to you.