Five months after prostatectomy or TURP is still pretty early. Give yourself time to heal and recover. Some people can take a year or longer, but others get good results sooner.
Are you doing kegels? That's the most important part of recovering your continence - if necessary, get with a physical therapist to make sure you're doing them right (they're easy to do wrong), and keep up with them as often as your urologist will let you.
Beyond that, it just takes a lot of patience!