Once you've done that, it's time to change the way you do business. Start by auditing your time. Start thinking in terms of hourly rates to do specific jobs. Clerical people are not paid as much as technicians and salespeople, who are not paid as much as CEOs. Even if someone else takes twice as long to do it, it's still a win for you.
Clerical jobs are often an easy place to begin delegating.
Batch these tasks together to be done every week or so, and hire someone on a part-time basis. The next time you do these tasks, make notes about them. Consider the time it took and how long it might take someone not familiar with the jobs, the information someone else will need to do the jobs, the way you have the physical space organized, and the skills and qualities you use when you do these jobs. This information will help you plan for the hiring process. Be prepared to allow someone to grow with your business.