Anxity kicking in

My precious gal is 4 months and 19 days. I'm so worried about my lil doll she will be starting infant care on the 10th. She still refuses to from drink bottles. I'm actually staying with my in law therefore she see them everyday but the moment my inlaw carry her she starts to cry alot.. I'm trying to make her drink from bottle for the pass 2 months. Sometimes she finishes it but most of the time she just chew on it. I'm starting work on the 10th too..I dont know how I'm going to do this.. There's so much going on my mind and I feel super restless.. haisss