A small kitten without a mama

Hello everyone! I hope everyone is having a good day/night. I am going to go straight into it. There is a small kitten in the garden of my apartment. She is small enough that she should still be drinking milk. I have a few problems with her and need incredibly fast advice on how to catch her!

  1. She seems to be a little sick

  2. When she sees me, she comes out of her hiding spots, but when I approach she runs again.

  3. There are a lot of other cats that live nearby, and they come around and attack this little girl whenever they come too close to her

  4. It's getting colder where I live

I really need some solutions that will help me now, rather than something that will take a few weeks. Thank you so much for advice!