The comments above are all great, I'd like to add some perspective related to the strategic part of UX / UI design, the part that is most commonly referred to as 'UX Research'.
In fact, I'd recommend you to consider all the following skills related to this area:
- Trends and competitive analysis, interviews and focus group, survey... everything that will allow you to understand who your final users really are and what they want
- The ability to write a brief to inform a creative team (or the design exercise you're going to do next), that you can develop up to the point of being able to write functional and/or technical requirements
These are just a couple of examples, but might be useful in terms of understanding the breadth of an UX professional, also offering yourself an alternative in case you're not so into the development side of UX/UI design.
If you get this skill, you might be able to be considered for jobs such as design / experience strategist and help your career as a creative director.
Happy to continue the discussion if you'd like to know more.
Federico recommends the following next steps:
- Sketch, InVision and Adobe XD are great tool to start with and have amazing tutorial
- Not only you need to create your own website, you have to make sure that it's the shiniest example of your portfolio so make it shine!
- Don't forget to share your ideas and personal project on platforms like Behance and Dribble, that's where designers and customers go to