I can understand you are frustrated with non-compliance of treatment. I shall try my best to help.
To start off with you will require a culture examination of a vaginal swab test and a urine culture and sensitivity examination. These are more specific investigations and will help in accurately diagnosing and suggesting treatment most suitable to treat the infection. I have said this because based on the information provided by you it is quite eviden that you are suffering from an infection.
A tilted cervix
can at times lead to accumulation and stagnation of urine and bacteria which can result in infections, but this is uncommon. Although if this is the case, consulting a surgeon can help in approxiate correction of the position of the uterus
I am sorry if I have not been of much assistance. Hope this helps.