Have you ever stared at the Ocean ,sea, river and you know you want to travel by the sea but you are so confused on how to go about it?
Well digital skills is like that Ocean that's so wide you just
1.need a direction you need to go to -- the niche you love the most
2. a carrier (boat,ship,canoe, etc) --- working Material
3. a compass -- a guide on your chosen path
4. Lastly a sailor to drive you there --- a mentor

There are various and too many aspects of digital skills which ill enlist below:
1. Data Science, Data Analytics, artificial intelligence and machine learning:
Data science is an inter-disciplinary field that uses scientific methods, processes, algorithms and systems to extract knowledge and insights from many structural and unstructured data. Data science is related to data mining, machine learning and big data.

2. Digital Marketing:
Digital marketing is the component of marketing that utilizes internet and online based digital technologies such as desktop computers, mobile phones and other digital media and platforms to promote products and services

3. Business analysis:
Business analysis is a research discipline of identifying business needs and determining solutions to business problems. Solutions often include a software-systems development component, but may also consist of process improvement, organizational change or strategic planning and policy development.

4.programming- website, software development:
Computer programming is the process of designing and building an executable computer program to accomplish a specific computing result or to perform a specific task.

5. Data visualization:
Data visualization is the graphic representation of data. It involves producing images that communicate relationships among the represented data to viewers of the images. This communication is achieved through the use of a systematic mapping between graphic marks and data values in the creation of the visualization

6. Social media:
Some of the best PR today is carried out almost exclusively through social media. Twitter, Facebook, Reddit, Instagram and countless other platforms give tech companies direct access to customers, thought leaders and evangelists. The best Tech PR managers are Social Media managers

7. Forex and cryptocurrency trading:
The foreign exchange market is a global decentralized or over-the-counter market for the trading of currencies. This market determines foreign exchange rates for every currency. It includes all aspects of buying, selling and exchanging currencies at current or determined prices.

8. Graphics design , UI/UX:
Graphic design is the process of visual communication and problem-solving through the use of typography, photography, iconography and illustration. The field is considered a subset of visual communication and communication design, but sometimes the term "graphic design" is used synonymously.

With these Skills I've mentioned I guess you'll see a niche that you will be able to comfortably fit into. Try not to do what your friend is doing and don't dive into any niche cause of the revenue it generates but let passion be your drive..... For more questions and materials send a DM or check my signature. Or chat me up @derekzyl on any social media platform..