Thanks for your query,based on the facts that you have posted it appears that you have
long standing problems of frequency of urination,poor stream, urgency etc and have been taking drugs but no relief from symptoms.
I think your problem could be due to narrowing of urethral passage (Stricture Urethra) resulting in incomplete emptying of bladder .
Please consult qualified Urologist
for clinical assessment and get radiological test called Cysto -Urethrogram done to rule out stricture of the urethra.
Further treatment will be decided by him on findings of the tests and final diagnosis.