If you start selecting from back to the front of the word, after adding [[, the cursor is already at the beginning of the word 
… or, on Windows, you can use Ctrl + left to jump the entire word, not just one letter.
I hope that this “temporary shortcut” doesn’t distract you from your desire to learn plugin development. So I’ll hold you for the word “another day”! 
Due to the rules, plugins can be complex, but there’s nothing to be afraid of. So, maybe you start with simple code snippets, which I’m sure you can achieve in your workflow with it.
This is my post on how I started with code snippets: [Hotkeys] Assigning "longer sequence of the key combinations". It’s a good example of how the community is open to newbies and helps them out. And some basic steps, very well described.
Keep coding! Cheers, Marko 