I wrote an open source python code to determine weak points of my reading skills. I have entering type and passage type of the wrong questions then the program is producing two graphs in one pdf. Currently system designed just for reading, but it can easily scalable. I am attaching 2 file that produced accarding to my 10 full reading test. (currently I am manually determining  type of questions but khan academy easily tag them at first.)

If anyone (including khan academy) is interested, you can contact me via this e-mail.

mertenes.yurtseven@protonmail.com

I can send you the code or if you wait for one month I can send an exe file. (free because I wanna help everyone who need it)

Also the program is able to determine question type succes based on passage types .

For example I am very bad at inference questions in history passages,however I am very good at inference questions in literature.