Increased frequency of urination could be due to a host of factors, including a UTI(Urinary Tract Infection),
Diabetes, and even conditions like anxiety, which is common in your age.
In anxiety, the urge to urinate frequently is common issue with a feeling of incomplete evacuation of the bladder.
Kindly get a ur one examination done, if any infection is found, do Urine culture and sensitivity test, so that your physician can start you on the right antibiotic.
If you think you have anxiety issues, kindly visit a Psychiatrist.
Good luck.