Hey there.
I’m not an electrologist, but from a business perspective, I have to wonder why you’re basically operating as a charity at this stage. If you’re running your practice out of home, your costs should be significantly lower than paying for rent and additional utilities.
I echo what Michael said. My electrologist has most of her clients find her through her website, and it’s not an impressively made or expensive one either. If people can easily find your business through Google, they will see how much experience you have, and they will see what separates you from other electrologists (provided you communicate this to them), and you will ultimately win their business. If people are searching “electrolysis [your city]” and your website isn’t already coming up within the first page or first three results, then changing that is going to have a massive impact on feet through your door.
And as Seana said, a rented office space can be really important for optics even if it’s not immediately practical. The first thought I had when I read about how many of your clients are unreliable and erratic is that you may actually be undercharging for your services. At 38 years of experience, your time should not be cheap. If you communicate that through good pricing, customers (clients) should understand that and behave accordingly… or they’ll go elsewhere and you’ll start to attract the clients who are willing to pay more for a committed electrologist and good results.
Sorry to butt in, I’m hoping it’s not unwelcome.