Changing careers at 3 years into a job, is it realistic?

After 3 years as a teaching assistant I am thinking about moving into a different field. My family is supportive but nervous. How did you start?

I began with informational chats, then a short online course, then a related entry-level role. It took about 12 months.

You likely have more transferable skills than you think. Write down what you did, not what the job title said.