I think the first step you need to take is figure out what it is you would like to do. Do you "want" to do data entry, or do you think you will hate it less than whatever you currently do?

Realistically, if you want to enter a new field you should get some kind of training in said field. If you want to work in computers go to technical college, if you want to be an accountant go to a community college to begin with, etc.