Hi, I have a rescue cat aged about 1. I have had her six weeks and she has been inside all that time as she wasn't spayed or vaccinated. She is now spayed and vaccinated and can go outside. Do I let her out just for short spells with me staying with her? Also the cat flap is at the front of the house do I teach her to use that first or familiarise her with the rear garden first? There is no cat flap at rear of house as there is a conservatory and then patio doors so not really practical for cat flap.