Consider the cost (time and money) of acquiring that skill vs. hiring that skill. Often entrepreneurs try to do it all, when the best choice, and the path to sustainable growth is allocating (or raising) the funds to hire professional talent.

Hiring talent (which is often better than you could ever be, because that is their single focus, and passion) prevents you from getting bogged down in the lengthy process of acquiring new skills every time there is a need, and getting distracted from the high level strategic leadership the company needs to thrive.