YouTube?.. Huge fountain of misinformation! Those videos are clickbait. Stay away from that garbage! Especially JBcoins! Seriously! You want to learn about coins? By the 2020 Red Book. It has a lot of great information with grades, values and even a section on mint errors and varieties.
You are absolutely wasting your time watching YouTube videos of someone else opening or searching any thing related to coins.
@David Brumley While there are some decent Youtube videos out there (from the Mint, CoinWeek, etc.), there is a lot of junk making outrageous claims and not telling the whole story, just to get clicks and followers. They make it sound so easy to look through your change and find coins worth lots of money. If it was that easy, most of the experienced members on Coin Talk would be sitting on a beach drinking tropical cocktails with little umbrellas in them. Those sites pose a problem for the new collector. With little numismatic experience but lots of enthusiasm, how do you know which to trust? The best thing to do is ignore the ones that make it sound easy to find errors or say they are worth big money. Yes, there are errors worth big money, but it’s equivalent to lottery odds finding one in change. Get a Redbook (shown in an earlier post) and read it. Look for Youtube sites that show how coins are made. The more you know about the minting process, the easier it will be to recognize real errors from the huge number of damaged coins out there. It takes time, but we were all newbies at some point.