This is a large and ongoing part of becoming a developer. It also happens again every time you try to learn a sufficiently new or alien technology. You know you start to make progress when the error messages begin to make sense.
Often you need to know a lot of context before you're even able to determine what the error message is! One error message can lead to a cascade of other error messages, or it's something breaking down as a result of multiple layers of indirection, requiring the developer to careful track the trail of what went wrong and led to another thing failing, which broke down the next thing and ultimately, decided to stop the program and mention only the very last thing falling apart to the user. There might be a directly sensible connection with the original error, but often it's quite unrelated. An experienced developer often immediately recognizes: this is not the actual error message, that other thing is! But for a junior it's all equally incomprehensible.
It is detective work with many false leads, and being very new at something it can be so overwhelming you don't know where to begin and immediately assume you will not succeed finding out 'whodunnit', asking your senior co-worker for help.
Often you need to know a lot of context before you're even able to determine what the error message is! One error message can lead to a cascade of other error messages, or it's something breaking down as a result of multiple layers of indirection, requiring the developer to careful track the trail of what went wrong and led to another thing failing, which broke down the next thing and ultimately, decided to stop the program and mention only the very last thing falling apart to the user. There might be a directly sensible connection with the original error, but often it's quite unrelated. An experienced developer often immediately recognizes: this is not the actual error message, that other thing is! But for a junior it's all equally incomprehensible.
It is detective work with many false leads, and being very new at something it can be so overwhelming you don't know where to begin and immediately assume you will not succeed finding out 'whodunnit', asking your senior co-worker for help.