Start with C#. The Microsoft Visual Studio 2017 IDE is the most accessible programming environment you're going to get, assuming you're on windows. And you can get extensions to it that will work with github, the most common collaboration tool for programmers, without ever having to touch the command line or leave the IDE. Also, make sure you download and install
$1. It's the largest productivity boost I've had in years. And the syntax of C# works well for screen readers; lots of punctuation and braces, and Microsoft Visual Studio will auto-format your code for you, so no need to worry about indenting or anything like that. If you can access bookshare, they have several books that will teach you c#.