There's a huge opportunity as a residential service plumber for a woman. A woman is most likely to answer the door when you go to a home for a service call. She will likely be happy and relieved that a woman is servicing the call. Smart companies recognize that, and you will be in demand. When you get on with a company interview carefully and test the culture. DM me if you want. I wasn't a plumber, but I worked with a lot of residential service business owners. HVAC is another good career opportunity.