Thanks for writing in
If there is complete blockage of the pathway due to Phimosis
than it can cause urgency and frequency to urinate and you will be able to urinate if you open the pathway. But I do not think you have complete blockage due to Phimosis.
Other reasons for your symptoms are BPH
or stones. At you age BPH is most common. Consult your doctor and get you USG KUB done to rule out other causes. Else you need surgery for Phimosis.