Bottle feeding

Hello mommies;gud eve po ..wanna know any suggestions po since it is my first baby 6 months na po c baby Ada ko and shes only 6.4 kgs and hindi po tlaga sya ideal weight at her age. Another prob is bumili po aq ng formula milk which is S-26 pero ayaw nya pa rin po mag dede sa bote. I am exclusive BF for the first 6 months. My goal po sana is unti unti ko na syang sanayin sa Formula milk pra po mka work na po aq ulit . But everytime when im trying to give her some.ayaw nya po sayang lng po ang milk. Ayaw din po ng cerelac ☹️ Sa vitamins po nya shes taking ceelin with zinc and cherifer drops po.. Pls pa help nman po . Thank u mommies and God bless po