How did you wean you fed baby?

PLEASE help! I have an almost 13 month old that feeds to nap(twice) and on and off during the day. At night, she wakes up 3-4 times. She is on table foods/Gerber and uses the sippy cup for water ONLY. I have tried whole milk, whole milk w/ strawberry, whole milk w/ chocolate milk---nothing works. She doesnt TAKE the bottle-which is a huge problem because I worry that even IF I wean, how will I supplement? Please help w/ any advice,thanks