So, learn to delegate.
The question is, how do you delegate effectively?
Firstly, identify what needs to be delegated. I do not recommend that you delegate very sensitive tasks for a start. When you are learning to delegate, start with simpler tasks such as supervision. You can delegate more when you have built trust and ascertained what the team can do.
After you have identified the exact tasks that need to be delegated, decide on the right knowledge and the skills that will be required to get the job done. I’ll give you a concise example here. On one of my previous jobs, there was a big issue with the uniforms supply. I needed someone to handle it while I focused on other tasks. So as soon as I identified this area that needed attention, I went on to identify the skills and knowledge required to get the job done, namely good negotiating and bargaining skills, attention to details, supervision of the tailors involved, exact description of the fabric for the school uniform, etc. Then I went on to select a staff member I could delegate this assignment to.