get Ubuntu running, preferably as dual boot.
- https://www.ubuntu.com/download/desktop
- https://tutorials.ubuntu.com/tutorial/tutorial-create-a-usb-stick-on-windows#0
Choose any, they are all good stuff.
- Atom https://atom.io/ (any platform)
- Sublime Text https://www.sublimetext.com/ (ubuntu/linux/MacOS)
- Dribbble https://dribbble.com/
- Photoshop
- Git https://git-scm.com/downloads (not the GUI tool - get the CLI, command line interface)