I find meditation to be absolutely crucial. I wouldn't pretend to know how it actually works, but life works better the more you do it. There are thousands and thousands of guided meditations on YouTube, so you can explore for the rest of your life, and you should. Some people like a particular practice and stick with it "religiously". But don't get hung up about it. It's important to realize that even when you just sit and do nothing, you are getting somewhere.