Lightroom layout

Depending on the exact plan that you purchased, you could have access to both Lightroom Classic and Lightroom. The program you are referring to that you are seeing is Lightroom (the cloud-based version). The tutorials you are apparently watching are for Lightroom Classic. The UI for the two programs is radically different, and you must differentiate when choosing tutorials, or you are bound to become extremely confused. Tutorials for one are not going to help you for the other.

The Photography Plan includes Lightroom Classic and Photoshop, but also Lightroom desktop.

If you purchased the Lightroom plan, you only have the Lightroom app which is not the same as Lightroom Classic. You don't get Lightroom Classic and Photoshop with the Lightroom subscription. By your description it is clear you installed Lightroom.

If you purchased the Photography Plan with 20GB of storage, you have Lightroom, Lightroom Classic and Photoshop. Check the Creative Cloud desktop app to see what is available to you. If you purchased the correct plan, you can instal Lightroom Classic and Photoshop from the Creative Cloud app. Here's a link to instal the Creative Cloud desktop app if you need it.

https://helpx.adobe.com/download-install/kb/creative-cloud-desktop-app-download.html

If you purchased the wrong subscription you need to contact Adobe to get it changed.

Go to adobe.com

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Review your Plan

What Plan did you pay for?

There is No plan that included Lightroom, the Cloud Centric (Cloud Based) version and Photoshop.

The Photography plan included Lr CLASSIC and Photoshop.

You have installed the Wrong Lr. you need to remove that version and install LrC (Classic).

It's probable that you installed Lightroom and not Lightroom Classic. There IS a big difference. Blame the naming confusion on Adobe. Lightroom is a relatively new program that is designed to store all your images in the cloud. It is installed from the same creative cloud application manager that installs Lightroom Classic. The user interface is much different from Lightroom Classic, and the features are much different from Lightroom Classic. The tutorials you are watching are apparently designed for Lightroom Classic.

Depending on which program you subscribed to, both versions could be available to you to use. You are entitled to use them both. But it is generally recommended not to use both of them on the same computer although it is possible to do so.

Please use the menu command Help->System Info and report the first 10 lines. DO NOT COPY AND PASTE THE ENTIRE HELP->SYSTEM INFO, we just want the top 10 lines.