The best skills to have are the skills that directly produce an outcome that a client wants.
Many skills that people have are enabling skills, skills that move a process forward. With these types of skills, you end up being a cog in a machine without control of your opportunities.
An Uber driver has a skill where they take a customer to the outcome (destination) they want.
A framer has a skill that moves the process of building a house forward. Without the rest of the house-building business around them, the skill has no value.
The trick is to take your skills and expand them until they do produce an outcome a customer is looking for.
A framer could do this by building sheds where he is doing the whole job.
To build opportunity, choice, and freedom in your life, build skills that produce the direct outcome for a customer.