One thing you can not do (should not even attempt to do) is to change the market's demand for a service or product. It is what it is.
The best strategy is to adapt.
So I would approach your situation by asking the following question:
What is in demand, needed, frequently used etc by the people (i.e there is market demand for it) AND is in the intersection of my skills, know-how, interests and talents?

You might be a great mechanical engineer, but try taking a broader perspective if there isn't talent for this job. What new skill & know-how area can you more easily master than others, which there is also a good demand for?