Well, in my journey (and completion) of learning C#, I've come upon a rather peculiar problem. I don't know if it has to do with having high-functioning autism, which I do, but I seem to struggle to remember anything related to this. If I see it and am given an example I can copy and reproduce results from a simple tutorial, I can do it usually without error (if not too complex). When I attempt to write my own script, my brain completely goes white. I can't remember or figure out how to use different parts of the C# language, and it's like attempting to read Chinese when I look through Unity's Scripting API and look for other tutorials for supplemental learning. I take notes, I pay full attention to the videos and interact along with them, and I do attempt solitary practice. I just can't seem to get anything to "stick" to the point where it makes sense outside of a learning example. I can't seem to apply what I'm learning in reality, and it's becoming a great problem. Does anyone have any advice for getting this stuff to stick? I've always been a visual learner and a hands-on learner, but with logical stuff that isn't within the realms of art has always been something I've had a hard time learning and remembering later on. I appreciate any advice you can give. Thank you.
EDIT: Updated on 11/11/2018 because I've been sick and busy AF with stuff outside of coding. I have been making great headway thanks to the set of tutorials made by http://rbwhitaker.wikidot.com. I was recommended this tutor by the user Septopus, and good gods has he been helpful at breaking down the stuff I didn't understand. I've been following along with the beginning C# tutorials, and will move on to MonoGame ones when I am comfortable. I cannot thank you all enough for the support and encouragement you've given. Just another sign I should keep going with this. 
Take care!
If you don't want to bother with a Framework, just pick up Unity... When you need to script it just loads up Visual Studio by itself and you work in the files then save them, and go back to Unity to run your game.
How long have you been programming? This is a common problem among new learners that they cannot form basic logic when tasked to write the code from a blank slate. Especially nowadays with the massive availability of code on the open source and stack overflow. People have gotten lazy.
Practice writing your own code (do not copy-paste from sample or open source) is the only way to do it. Start with pseudocode. It helps in forming the basic logic without dealing with syntax details, then convert your pseudocode into real C# code.