Sorry to hear of your friends brother! That’s horrible and yes indeed life is too short so we should do what we can to do it to the best of our abilities.

You don’t need a formal education to be successful, especially these days. There are so many things that we can learn on the internet, it just takes a little time and direction. You shouldn’t stress out too much because millions of other people your age are confused and not sure what to do. I’m hoping that you can figure something out, only you can know what you’re good at so take a step back and make a catalog of things you’re good at or enjoy, or would like to do and then work at it from there.