To search for videos, simply type what you're looking for in the search bar and click the Search button. Results will appear below, just like a Google search. If you want to get really detailed, click the Filter button below the search box.

On your computer, go to your Google Account. On the top left panel, click Data & privacy. Under "History Settings" click YouTube History. Got it at the bottom right of the pop-up to save your auto-delete activity choice.