Where Can I Go For a Clear Explanation of How to Calculate Gas Fees?

I hear about gas fees all the time but since I’ve been holding and just acquiring more ETH on the dips, I have never really had to deal with gas fees.

I think a lot of folks are unaware of how it works. And now that I have real money in ETH, I want to move it from my exchange to a cold wallet. I’m holding until BOOBS and eventually want to start my own node when I get to 32.