Take 200 to 300 ml water per hour per day when your awake.Its a physiological process, body makes urine 50-100ml per hour per days.If you binge on water it will cause extra water to be expelled out of the body.Since you are a female, it is estimated that females may get UTI on average twice in their life time, but it in UTi frequency and urgency is more that you have said.
Next Steps
So excercise, do not binge at once, take small doses of water as explained above.
Health Tips
See urologist if the your uncomfortable or having lower abodminal discomfort.