Always make careless mistakes - anyone else?

So I’m usually a very careful / meticulous person. In basically every other subject (math, language, etc.) this has served me well and isn’t usually a problem in life for me.

However, it seems like whenever I try to carry out a data science project, I make a ton of small errors on my first few passes that end up wasting a lot of time. Errors like mixing up indices, column names, etc. I write a lot of tests, but …

datascience mistakes