A cat litterbox training but messes other places too?

My cat is about 2 years old, and she uses her litter box, and I clean order prescription drugs online it everyday, but she will **** like on a towel if it is on the floor. Or even just outside her litterbox. Well then she stopped doing that, now she is ****** on beds and chairs, but she knows she isn’t allowed on furniture. Her food and water are in the same room as her litter box so she knows where it is, but they are on opposite sides of the room. How can I get her to ONLY go in her litterbox?
Thanks..