How to transition from FE developer to UX designer?

Hello friends :)

I have got 4 years of experience as a Front End developer. Currently working mostly with React and Typescript.

I have a strong need to create and be part of decision making process and not only a person who is developing products designed by others. I also need to cooperate more with other people and not spending whole day a front of computer.

So my idea is to transition to UX designer, but I don't want to start from scratch starting from junior position.

Any tips how to accomplish that? Or maybe there is other way to fulfill my needs?