By now, you've likely seen all the "gurus" in your Facebook feed. Some of them are more popular than others. What you'll notice is that the ads you see that have the highest views and engagement are normally the most successful. Use a site like Similar Web to study those ads and see what they're doing. Join their lists and embed yourself in their funnels. That's an important part of the process so that you can replicate and reverse engineer what the most successful marketers are doing.
Decide if marketing is a career fit for you. Consider taking a personality test, which will reveal your preferences. A test similar to the popular Myers-Briggs test can be found at 16personalities, and there are many others. This test will reveal your work preferences. See how of your preferences match the skills needed to be an Internet marketer.