My path into the creative field began with studying art and the basics of graphic design. Looking back then with all my academic and work experience as a visual/graphic designer and artist transitioned to product, I have to admit how important is the ability to re-use your previous knowledge in a new role. And especially it is related to those, who make a career change without a previous design background.
Here is a very simple exercise I made while fully dedicating myself to UX/UI design and lowering the power of the internalized imposter over me. All you need is to take a pen and a paper and finish the following sentence:

“As a [your previous role], I realized [what]. The same principle applies to [your new role]".

Here are some of my examples:

As a UI artist, I understood the importance of engaging and simple interfaces. The same principle applies to UX/UI design; creating intuitive digital experiences and testing them is mandatory when it comes to designing accessible interfaces.

As a graphic designer, I know the value of dedicating myself to details in visual communication. The same principle applies in UX design; the entire experience must be predictable, consistent and pleasurable for the customers.

As a visual designer, I understand the importance of experimenting and playing with different tools in visual communication to create a message that is unique and stands out. The same principle applies in design research; exploring and applying various research methods helps better empathize with the target audience.

As a visual designer and artist, I realized that research plays an inevitable role in my creative process. The same principle applies in UX design; user research is a significant part of the entire design process.

As a visual designer and artist, I recognize the value of empathy when creating for other people. The same principle applies in design research; Understanding what people think, feel, and experience leads to designs, that are truly relevant to the customers.

As a visual designer, I know the importance of investigation and development of aesthetic strategies. The same principle applies in UX design; incorporating a visually appealing, sort of emotional experience is a part of any successful product. 

Good luck and have fun 🙂