I have a financial question

Say I have three horses and I'm spending $500 a month on boarding, how much would I have to make each year to care for those horses properly in North Carolina and be able to travel when I please, without having to cut Corners Etc, my boyfriend says I need to make nearly a million dollars to do this but I don't believe that, the $500 on that thing is just for example I believe I could board a horse for $300 each month at my nearest facility, any other questions you have I will answer to the best of my abilities, I'm also currently 18 years old female no high school diploma and no secure income at the moment I do odd jobs and have help from family at the moment, I want to know though how much I myself would have to make to care for my animals without help from someone else