Changing careers at 4 years into a job, is it realistic? - 2 months and counting

I want to move from procurement assistant to something with more stability. There are 4 people counting on me, so I am trying to be careful. I have a little time and a small budget for training. Has anyone made a similar move?

I began with informational chats, then a short online course, then a related entry-level role. It took about 2 months.