Consider starting with project-based help instead of ongoing part-time. This way you only pay when you actually have the work to justify it.
I’d look for:
People who already freelance in your field
Students who want experience
Retired folks looking for flexible work
Another approach is to partner with another solo person. You can refer overflow work to each other when things get busy. No commitment but you both benefit when workload spikes.
Before hiring anyone though, track your income for at least 3 months. Figure out your absolute minimum monthly expenses plus a buffer. Only hire when you’re consistently above that number.
Also raise your rates first. Seriously. Most of us undercharge and then wonder why we can’t afford help. Sometimes the solution isn’t cheaper labor but better pricing.
Pay someone per job instead of by the hour. This keeps labor costs tied to your revenue.
I did this when my income was unpredictable. I found someone looking for extra cash and paid a flat rate for each job completed. When I had more work, he got paid more. During slow times, he didn’t expect a paycheck.
This approach reduces the risk of paying for hours when business is slow.