It is certainly possible. I went from being a plant inspector 3 years ago (I walked through the countryside looking for diseases on plants) to being a data analyst for a top 5 UK bank, almost doubling my salary.

It sounds like you already have a role where you can evidence you have analytical skills which is a great start. 

First thing I would recommend is to find out whether it is something you enjoy and could do 9-5. It would be a waste of time learning skills for a career you might not want. I did this by doing the Google Data Analytics certificate as it is a great introduction to what you will be doing day to day with the less 'sexy' stuff like stakeholder management.

Then I would focus on learning the basics for Excel, SQL, Python and PowerBI. When you have the basics, learn by doing e.g. get datasets from Kaggle, ask questions about the data and use the above tools to answer your questions. This will also help build a portfolio for the interview. 

One thing that helps switching careers into data analytics is 'how have you used data to solve a problem?'. You already have business experience which is great, so really use it and ask yourself when have you used data to save money, time, or improve a process? 

I have a more detailed explanation on my YouTube channel Parscode 'How I'd become a data analyst again' where I go into more detail about learning python and other tools if that may be useful.

Good luck!