Her entire world has been turned upside down. New sights, new smells, new routines, new people... it can be very overwhelming for kitties... and some kitties are a LOT more sensitive to change than others.

My first piece of advice for you is to look into getting a Feliway diffuser for the laundry room (or whichever room she is kept in/hangs out in the most). It emits feline phermones that have a calming effect on them.

And some cats will just always be timid and won't come out around people... and that's ok.

It may take awhile... when I brought my feral kitty home, I pretty much ignored her for the first month or two and did not try interacting with her. I let her come out on her own terms and do what she was comfortable with doing. Slowly but surely she would start coming out when I was awake in my room... but if I stood up, moved, turned to look at her, etc, she'd run right back into the closet to hide. Eventually she started sleeping with me, and not running away and finally let me pet her... and from there we were inseparable.

I hope I'm understanding correctly in the sense that you have her confined to ONE room and not the run of the house? Allowing them access to an entire house right away can be extremely overwhelming, so sometimes keeping them confined to just one room for awhile will help and then slowly allowing them out to explore other areas.

So... TL;DR: It can take some time for her to warm up. Try using a Feliway diffuser (can find on amazon or at local pet stores). Don't force affection; let her come around on her terms, not yours.

I know know frustrating it can be. Just be consistent and persistent, but most importantly... don't give up!