Career “fork in the road”

I am 26 years old, I’ve recently gotten my Brokers license. I’ve wanted to be in Real Estate for about 5 years, since I started as a receptionist for a developer. I enjoy the energy, and it’s something I understand. I recently moved states, to be closer to family, I have been a receptionist at the office I’m at currently for 8 months. When I started there had been a complete turnover in the company. I am currently the 2nd senior employee because of this. Since I’ve started 6 of the new employees have also quit. I want to chalk this up to our owner being very difficult to work with and too busy to train anyone herself. I truly feel I could learn so much from her, as she started this company as a young mother and is now very successful Real Estate Broker. What I aspire to be. However I’m starting to feel like I will be in the position I am in forever, as I’ve made myself irreplaceable. I can do most aspects of the company from accounting to property management to brokers assistant. When I started as a receptionist at 15/hr my only duties were answering phones etc. now I’m doing the job of 3 when I approached my boss about a payroll review she laughed and said that’s exactly how you don’t get a raise. I’ve been approached by another office offering the same pay to start out as a receptionist. I have a good friend who is a broker there and has been trying to get me to be a broker as well for months, I want to start in a salary position while I learn the brokerage side before I make the move to straight commissions, so this position makes sense. However I’m skeptical to start fresh so soon after starting fresh. To start from the bottom again and work my way back up somewhere else and possibly miss out on some great knowledge and opportunities where I am now. But if I stay I’m afraid I’ll be stuck here forever at a low pay doing whatever the owner throws on my desk and never really learning how to become a broker. I’m at the age I want to start a family, and I’d love to be able to work from home if a kid is sick etc. and being a broker seems like the best way to do this. But I don’t want to start a family without the security I know what I’m doing and can make enough money.