Whole sector shrinking, should I change fields?

Our sector has been shrinking and I am unsure if I should wait it out. The postings I see are fewer and ask for more. Who has switched fields?

Look at job postings to see which skills repeat, then fill the gap. That gave me a direction.

Thanks for writing this out. I went through something close to it 2 months ago, and it settled down once I kept a simple log of every call and form.