Like people including Stephen Hawking and Elon Musk have predicted, I agree that the future is scary and very bad for people. If we build these devices to take care of everything for us, eventually they'll think faster than us and they'll get rid of the slow humans to run companies more efficiently.
You can make something big when young that will carry you through life. Look at all the big startups like Microsoft, Apple, Google, Facebook, Twitter, etc. They were all started by very young people who stumbled on something of unseen value. You'll know it when you hit a home run.
I never got into Linux. I swear to God, it's only lack of time. I'm past the years of my life where I can really dig into something like running a Linux system. I'm very sympathetic to the whole idea; Linux people always think the way I want to think.
What I was proud of was that I used very few parts to build a computer that could actually speak words on a screen and type words on a keyboard and run a programming language that could play games. And I did all this myself.