>Switching jobs from electrician to teacher to nurse

The point is not to do that ever.

Just gain one of the skills like that and plant it firmly on your resume, before trying anything more risky.

Like starting a business, which might not actually cost as much or take as long to get a license.

And with no further delay needed before any future pivots, when you might need quick alternatives most.

Even if you only go back to teaching for a while to regroup.