[jamiepenney]

It all seems overwhelming when you look at the whole of the industry like that, but it's a lot easier if you pick a niche for now. If you like backend work, just ignore Javascript for now. If you need it for a job, you'll be able to pick it up, I promise. You sound a lot like me at 17, although to be fair to you there weren't so many technologies at the time. I started with C/C++ and Win32, played with MFC, learnt OpenGL and tried to write a game engine with a friend, got into Java at Uni, did language parsing and C# WinForms at my first job, moved to a SaaS company having done no real web development before, now I work for another web startup where I need to know a whole chunk of those techs you listed.

I tell people I probably won't be working in tech when I'm 40. If you think that's where you'll end up, plan for it. My plan is to buy a business with my wife in her field and do some contracting on the side. No idea if that will work out or not, but that's a 10 year plan. Just having a plan can help with the anxiety.