My current stack is unfortunately irrelavant in this aspect as I use software only related to my electrical engineering job. I am familiar with C, Python, Java as I have used them in my courses during my studies. I am well aware that I am practicaly starting from scratch. I want to learn this in my free time as I am passionate about the technology and I have extra free time. So I am stil probing what would be the best course of action to take in the following years regarding my journey.

Solidity and backend stuff is very fun and pays the most compared to front end

It comes down to personal preference I guess

Solidity on its own isn’t good enough anymore you need to know some front end and also some backend stuff at least that’s what I experienced in my first two years

React isn’t hard you can just do a Udemy course and then learn to use ethersjs what you really must know is how the front end connects and interacts with smart contracts so you have that in mind while building them