YouTube is an amazing tool. If there's anything you want to do, from playing an instrument to fixing household appliances, there is a video on the site somewhere outlining exactly how to do it. The problem: YouTube doesn't always act like a tool. It's easy to get sucked down a rabbit hole of related videos, comments, and other distractions (mostly because the site it designed to make sure you do exactly that).
If you wish YouTube behaved more like a tool and less like a dopamine factory, I recommend Untrap. This browser extension, available for Chrome, Edge, Firefox, Safari, and Opera, lets you make almost 300 tweaks to the YouTube website, allowing you to remove the distracting features and enable a few useful ones by default.
To get started, install the extension and click the icon. You will see a few useful options, including the ability to hide all shorts, but to find the really useful things, click the All Settings box at the bottom. This lets you browse tweaks for every page on the YouTube website, including video pages, the home page, and the search results.
I suggest starting with the place you spend most of your time: video pages. Scroll through the list and you'll find various tweaks you can make. The first thing I did was turn on "Hide Related Videos" and turn on "Automatically Show Chapters." This immediately transforms the space to the right of the video from a rabbit hole of distractions into a tool you can use to browse the currently playing video with intention to find the exact information you're looking for.
There are more great features here. You can disable the suggestions that show up at the end of the video. You can force the theater mode, meaning the video will always take up the full width of the screen. You can automatically extend the video description, meaning you'll never again have to click the little "More" button in order to find the link that you're looking for. You can even disable the comments completely, if you wish you spent less time scrolling through them. You're in control.
There are similar options for YouTube's homepage, the subscriptions page, and even the search results. If there's anything about YouTube's interface that you find distracting or generally not useful, just disable it. In an ideal world, YouTube (and every other site) would work this way, but it's nice that there are tools out there that let you customize things.
