Creating a VBA input form, please help/guide me.

I have a workbook that i am trying to create a data input form but have little knowledge of VBA. Knowing I shouldn't approach this alone I am seeking assistance. I need to know where and how to start this. The form needs to be able to add new employees, simply the name as a whole unit, also needs an input with dropdown and date so one can select an employee and then select or type a date and select if they took a sick day, personal day etc. The workbook has a data sheet that will contain the info but I want a form to input this info. I want the same form to contain the option to input any absent days for the selected employee.