Hi, my advice if your starting out is find a mentor to help you plan out your business.
Also when creating your goals I suggest 10X them, the effort required is the same as
attaining any size goal, your tasks to achieve them will change and it will be worth it - 10 times.
Feel free to reach out with your biggest obstacle you have right now and I will help you overcome and break through to your next level.
My advice is pretty simple. Do the things that you are good at. Get help with the others! The time you save by getting help from those who have a different skill set is key to keeping things on track.
Sometimes help doesn't necessarily mean a person! For example, if you are now "time-tracking and invoicing" a good app that suits your workflow may be what you need.
Anyways, make a list of the things you need help with and start looking for resources!