Digital marketing is not an easy subject. Even if you are in the digital marketing space for more than 10 years, You still have to learn new tools and new digital marketing tactics. However, with time, learning new tools becomes easy. Learning new concepts becomes easy.
As you spend a lot of years in Digital Marketing, you will end up realizing that the only way is to keep yourself updated and an expert is to keep learning new things. Your ability to learn new tools and new digital marketing tactics will improve as you understand the fundamentals better.