Yes anyone can switch their career from non-IT to UI UX design.
Here are a few steps to learn UI UX design -
1. First learn about the basic terms of design
2. Then research whether this field suits you or not
3. Take an online UI/UX design Bootcamp or online course
There are plenty of institutions available in the market for UI UX design technology. But most of them failed to provide the learner's requirements. For that, I suggest you take up UI UX Certification offered by Intellipaat. This course is suitable for everyone who wants to pursue a career in this field as the training begins from scratch level and goes up to an advanced level.
Before that do check out this video on how Intellipaat helped Sachin Kumar in switching his career from non-IT background to UI UX design -