I'm feeling like I'm sometimes invent something again from scratch that is already known and I could just read about it somewhere instead, but I don't know how

I'm feeling like I'm sometimes invent something again from scratch that is already known and I could just read about it somewhere instead, but I don't know how it's called yet For some unique problems that's IMO fine but form time to time I read somewhere something that gives me another perspective and dramatically changes my approach That's why I'm looking for a way to eg learn more about some interesting algorithms that I don't know that I need before I read about them