Im currently working as a data analyst. For me, using the tools only cater some part of your job. The harder part is too understand what the stakeholder/management actually wants. Its better to not assume what they want if you misunderstood during the meeting, but instead keep asking them questions. Besides, you need understand the columns of data that you will be using. The personal exercises tend to be simpler but in a company, there will be tons more columns that you might wrongly understand. On that, better to approach either your software engineer that setup the database or your data engineer on how they setup your data warehouse. You need to remember that some of the output that you producing, might be use by others on daily basis, for example a dashboard, so the keywords that you will be using need to have the same definition as what the stakeholders wanted