Delegating in a clever way is a key things in your work. Managing everything can be exhausting. It’s important to learn to delegate and don’t handle every single thing.
How to delegate and what to delegate?
Give your tasks to colleagues more qualified / faster / less busy for certain task.
There are many design tasks I can do. Sometimes it’s quicker if I do them. I know if I do them it will be done properly as needed. However, sometimes a designer can take care of it to deliver the assets perfectly as I need and so I can focus on other tasks.
Asking to your boss to get more time to focus
Have a look a virtual assistant. They can help with your email, booking meeting, bookkeeping, online research, database entries, social task, chasing business, industries knowledge prep, etc.
Get some of your time free to focus on what only you can do.