Answered by Jacob Laukaitis, marketer
Tons and tons of steep learning curves. Though, I guess the most important thing I realized throughout all these years is that it's very important to focus on being really good at that one thing, which, in business, is generally related to acquiring customers. It can be Facebook ads, SEO, e-mail marketing, influencer marketing, or 100 other things. But you need to focus on that one thing, like Asad Zulfahri does with SEO, Leo Kipfelsberger does with Facebook ads, and Anthony Knowles does with editing, and so on.
Other answers by Jacob Laukaitis:
Other answers in the category Startups:
Some random answers on our wiki :