Welcome to the forum. And you landed in the perfect place because this section of the forum in the 'sticky' threads at the top should give you a good overview of mystery shopping as a business and how to get started.
There are many opportunities in the Tampa area, there are many shoppers and the Tampa area is large and often difficult to navigate.
While I personally came back to shopping when I took early retirement as a source of income, that was definitely more than a '40 hour work week' to accomplish. Now that I am on Social Security, shopping can be more of a supplement to that income and focused more on reimbursements which enhance our lives while keeping a smaller income trail to offset shopping expenses.