You forgot your indentation

Sounds like a problem for someone who is writing the code on a toilet paper or whiteboard. Most people have some sort of hackable editor/IDE that handles the indentation and code blocks.

obfuscated error messages

Just don’t use libraries which print or log exceptions without raising it :)

Instead, you can try to extend the existing project with new features, possibly improving your code reading skills and discovering new practices

Probably me, if only I could finish anything…

PUT /parking?lot=1 HTTP/1.1