Everything Mruffruff posted is right on target. I have also brought in semi feral cats. Giving them a place where they can feel safe is very helpful. My Cuddles has been indoors for 2.5 years and just this month started to venture out of the bedroom. She hasn't left that room willingly (I DO have to get her to the vet now and then!) in all this time. She feels safe in there, eats, drinks, uses the litter box.

It takes time for them to adapt. Let things progress at the cat's pace. This let's the cat feel some control and helps keep the cat calm. always approach the cat slowly and calmly, speaking softly. I would randomly take in a cat toy or catnip and place it on the bed for Cuddles. Initially, she jumped off the bedand hid undr it each time I entered. Eventually, if I was not looking AT her, and placed the toy and left, she remained on the bed.

After over a year, she started to approach me at night. This is when we are least threatening to the cat. Lying down, half asleep. And she learned that petting was NICE! Mmmmm. That was the beginning of making lots of progress. We have a set back each time I have to "trap" her for a vet visit, for shots, to be spayed, etc.

Don't force her to be best buddies with you ro the other cats. All you are doing for no is letting her know that all of you can co exist peacefully. By having your expectations right, you will feel better and recognize progress as she makes it on her terms.

Bless you for helping this kitty!