I cant choose the career I want because of money and stability issues, what do I do?

I used to be a Visual Merchandiser, I loved my job and looked forward to coming into work everyday at the store I was at. I loved being creative and organizing everything. I especially liked being left on my own to do my job and setting deadlines and goals for myself. I was praised for my work ethic and my ability to get the job done.

I transferred to another store but was fired as I didn't get along with my new boss and was handed a piece of paper telling me I am being let go.

This made me realize that this career is not a safe one. At any moment, you can be fired because its retail. I also realized that in retail, the raises you are "supposed" to get, never happen regardless if you do a good job or not.

I miss my old job but I have to think about my future, I am in my late 20's now. What is very similar to Visual Merchandising, but is more stable and earns more? I am so lost as to what to pick or go to school for. Any info is helpful. Im quite miserable doing a job now that I am not passionate about.