Taking her to the potty when YOU have to go is useless. You have to time it when SHE has to go. If you can't figure out her usual times for needing to urinate, you're not going to have much success. Tip: this is usually soon after eating or drinking, or soon after waking from sleep. If she hasn't formed a predictable schedule yet, put the potty away and try again in 3 months.
From a wise older woman I learned that potty training is easier in warm months, because the child isn't frequently cringing from cold, which can force the urge to urinate at other than normal times.
Potty training is much more successful when the child is ready to poop on schedule, anyway. Once they are uncomfortable with poopy diapers, they are much more motivated to learn. Learning to urinate on the potty usually comes after learning to poop on the potty.