Marketing is important, but you already have 100 things on your to-do list and they are all important.
Solutions
HIRE NEW STAFF?
Finding new people is hard, and training them is expensive. Even if you find the perfect person, you are still dependent on them.
DO EVERYTHING YOURSELF?
It's good if you only have a few things to do, but if you're busy, this is not feasible.
HIRE A MARKETING AGENCY?
You don't have a marketing budget of tens of thousands of euros? Good, then your marketing is probably often handled by the intern of the intern. Not ideal