The Jetbrains suite. Lightens the cognitive load, makes it easier to refactor and keep code tidy. All of which allow me build better software.

For almost everything else e.g. git, learning how to use the command line instead of a UI is the best way for me to learn how the tooling works.

Seconded, although to be fair the choice of IDE doesn't really matter as long as it's relatively good. When I moved from vim to Jetbrains, one of the biggest things was seeing all the small errors including spelling mistakes. Being able to easily see and fix minor syntax errors or things like missing variables etc really makes a difference, especially when you are working on a codebase where that was missing for a long time.

If anyone is an emacs/vim user it's certainly worthwhile to enable similar error reporting plugins to get the same effect