Let's take one step back and have a look. The main cause of the output produced being bad is... bad input. Find a data science job where you are part of produci

Let's take one step back and have a look. The main cause of the output produced being bad is... bad input. Find a data science job where you are part of producing that input by gathering raw data yourself or at least have an impact on how it gets measured. The first datasets will be garbage but at least you have a feedback loop that tells you how bad, in what way the data could be wrong. You can bring in theories, read papers,... to improve (the measurements of) the data. You will see gradually your data starting to make sense. Wouldn't that be fulfilling?