K.D.
I suggest taking it easy and keep trying to transition slowly without stressing it too much... she'll be ready when she's ready, and it's okay if she likes the bottle for a few more months. Have you tried a cup with a straw? Everyone told me that my daughter wasn't ready for a straw if she couldn't yet do a cup, but she loves straws and it works great. I really like the "take and toss" cups w/ straws by First Years. You can find them at Target. I don't toss them, they wash great and don't spill. She still hasn't mastered the cup alone yet, but she does great with straws of all types.