Here is a step-by-step guide to setting up your GCLIDs in your Google Ads account.
Sign in to your Google Ads account.
In the left page menu, click Settings.
Click Account Settings.
Click the Auto-tagging section.
To enable auto-tagging, click to check the box next to "Tag the URL that people click through from my ad."
Here is a helpful article on how to turn on auto-tagging on your account:
How To Link Your Google Ads and Google Analytics Account: https://support.google.com/google-ads/answer/7519537?hl=en&ref_topic=3121765
Video Tutorial on How To Link Your Google Ads to Google Analytics
Be sure to check how data appears in your Google Analytics Account