If you're having issues getting through to SAGE right now, you can also grab the game on itch.io :
stevethebartender.itch.io/milk-quest-r...

It's the first time that Milk Quest has ever been relevant ever!

The demo (the first 3 levels) is like 90% done... I will say more on this in November but hopefully it will release soon... have Faith...

I would recommend starting with something simple like JavaScript or Python, which you could honestly learn on your own with just online tutorials and sites like W3Schools. Learning the basic concepts of programming is super important, then focus on learning whatever tools you would like to use.