Changing careers at 9 years into a job, is it realistic?

I want to move from mechanic to something with more stability. It has been weighing on me all week. My family is supportive but nervous.

Try a small project in the new field before committing. It told me a lot about whether I would enjoy it.

I began with informational chats, then a short online course, then a related entry-level role. It took about 4 months.