How do I get my tools to display down left panel in 2021?

I hit a key and all my tools are gone. I’ve searched the task bar for an hour. Search each item. Clicking on panel when they dropped down. Nothing seems to back the selection of tools underneath the task bar. I don’t know if I’m calling the bar the right name, but it’s the bar where the icons for the tools are displayed. Sorry for my grammar

Can you show us a screen shot of your entire screen so we can see what you are looking at?

If you open View/Toolbars… what items have their checkbox checked? Try at least checking the Getting Started or Large Tool Set entries.