"How do you juggle all the roles you need to do in a solo business?"

The short answer is you do have to do a hell of a lot of learning.
At the start, you’ll need to learn all the skills that a business normally has staff for.
You’ll spend half your time doing the work, half the time on “support tasks” that run the business and find the work.
So there’s the project work itself, having some kind of marketing strategy (which you’re always improving), sorting out background admin like contracts and invoice etc.
Once you reach a certain level of retainer income you can invest that regular income to get a VA.
This is a game changer which will free you up to focus on big-picture thinking instead of “doing”
In the meantime systems and automation are the way.
If you’re going to do something more than twice, then spend a little extra time to figure out a system or a way to automate or reduce the steps.
Use templates for everything.
Create template emails for onboarding, feedback request etc.
I’m going to expand this later…