As far as jobs in high demand, the easy answer is where there is short supply. Service and minimum wage jobs will always be in short supply so you can always get work. As far as jobs that pay well, those are highly skilled jobs: ones that take a lot of training, possibly dangerous or high risk but these will not be in high demand, so the number of those jobs is much less.
The best success stories are from individuals that seek after what they are passionate about. So the question that will get you better success is: What am I passionate about? / What do I enjoy doing? / What would I do even if no one paid me to do it?
Once you know those things, then find industries that align with those things and get a job being paid to do them. You will be more fulfilled doing something you love then something you hate for a few dollars more. So the next question is: what industries/ jobs do those things?
So as an example, if you love to cook, you can do it all day, you like making people food, then you should look at pursuing a career in the culinary arts. This may need some training, or it may not, depends on what specifically you want to do.
I would suggesting to make a list of the answer to the question(s) above and then in a second list, put jobs that do those kinds of things. If you are unsure, do some google searching for "jobs that do [your passion]" and see what comes up.
Then you can start to for plans for how to get from where you are now to where you want to be.
There are also career assessment tests you can take that might help you find that passion or a little more about yourself.
Jobs that pay well and have high demand can go hand in hand in certain industries.
Some top industries that meet these two traits are:
★ Medicine: Some specific areas of medicine that might grow in demand are Nursing and Medical Technicians.
★ Technology: Software engineers and UX/UI design are popular + the most well known. Other less popular yet equally growing areas are Cybersecurity or Network Engineering (for wireless networks).
★ Engineering: Some specific areas of engineering that might grow in demand are Environmental engineering and Electronics engineering.
It's great to consider the demand and pay for careers! Regardless, there are other factors a person should consider before investing resources into entering a new career field:
★ 1. ★ Does the field align with your skills or capabilities/desire to learn?
If you aren't able to perform specific skills for these fields, or aren't willing to learn specific skills, you won't be successful.
★ 2. ★ Does the nature of the work appeal to me?
There's a big difference between liking chemistry and liking being a doctor. Similarly, there's a difference between liking coding and liking being a cybersecurity professional. Learn the day-to-day life of jobs in the field and see if you can picture yourself doing the same thing.
★ 3. ★ What is the quitting rate for the field?
A newer concept, this describes how quickly people leave the workforce vs the speed that a company/group can refill roles.
If a industry has high numbers of people leaving the field, it can be a good or bad thing for you. You can have new opportunities, or may enter an opportunity that's toxic or poor.
Also, the quit rate depends doesn't always mean it's the fault of the field, but rather the type of companies your working for.
Big technology companies may lay off employees more often, but...
There are companies that offer job positions in technology in other fields.
Make sure to consider work environment and company structure in any field you're looking for.
To learn more about in-demand and high-paying jobs, you can check out the World Economic Forum Report:
Sending good luck with finding work that meets your desires & needs :)