One of the best pieces of advice I can give you if you want to get good at marketing, is to study the principles first, and tactics second.

Study what makes an ad actually work Vs. studying newest social media platform to place ads on.

If I had a marketing apprentice working for me, and I had a vested interest in their future earnings (say, 10% of their gross sales for the next 10 years), the very first thing I’d do is get them to study the classic direct response marketing books.