Kat,
I have to agree with Jeff on this one. Stick with the steady work with benefits and have the best of both worlds. Maybe look at a career change, but consider keeping both. You might not realize what expenses are involved with insurance both personal and business. A $50,000 a year salary might end up being an $70,000 expense for your employer. It will include insurance, which isn’t getting any cheaper, vacation, sick time, pension and other benefits. If you do decide to give it a go full-time, I would suggest that one of you keep the full-time gig as a fall back. One of the most important things in business is to create residual income. You work once and keep getting paid. If you work this way over time then you will create an increasing income over time and not have to work from job to job.
Love what you do and you will never have to work a day in your life.
Steve