Did you have a specific vocation you wanted to freelance in? I could tell you a bit about being a freelance driver if you want.
Discussion
I enjoy computer stuff, working with data analytics, the financial market, and stuff, idk how to shine so bright in these markets so companies or people would like contacting me instead of offering me a job, you know. How to improve my knowledge to kind of serving as a consultant for people or companies? That's when I get afraid of leaving my actual job and finding nothing. Or should I try to open a business? Which kind of business? Idk man, I'm getting old and must provide for my family
You could start by looking at jobs on freelance sites like fiverr and upwork. That will at least give you an idea of what kind of work is out there and if there's any in your field. I can't help much beyond that, but there's a lot of software devs around here that probably can.
Appreciated, I didn't know both websites, I'll look into it