Make no mistake- I am normally a Vim / Emacs / Terminal advocate. But if you need to use full-featured graphical text editors or IDEs for development, there are ways around it. Almost all major editors with a plugin ecosystem today allow you to enable or install vim emulation. Here are some plugins for the major ones. Installation is fairly trivial.
Go to user settings (Settings > Preferences) and remove
Details can be found in the Official Sublime Text Docs.