FY, It takes a lot of time and you've only been at this a very short time. Overall, I think you've been handling your situation quite well. Try to imagine that she's a very little kitten who is very skittish of humans and you are trying to convince the kitten that you mean no harm. The only way to do this is drop kindness kibbles and allow her to gobble them up at her own pace. That also means you need to step back and allow her to feel secure in her surroundings. Eventually, your skittish kitten will feel safer and will begin to come out more and more. If you try to rush the process, the kitten will stay hidden for a long time.
Prayer is one of the shovels that will help you gain more patience.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.