Climbing rose regeneration
I have a climbing rose (sorry, can't recall the variety) that was planted about 6 years ago. The first couple of years it out on lots of growth but didn't flower. It was also prone to powdery mildew the first 2 or 3 years however that has not been a problem the last couple of years. In the 3rd year it flowered really well however the last 2 years it has only had a handful of flowers at the top.
I have kept it well watered and fed twice a year. I have also attempted to prune it each year.
I suspect the problem is how it has been trained and pruned and am just looking for suggestions on how to go about rejuvenating it in the Autumn so. I understand from watching a couple of videos I need to stars from the bottom and work my way out and that I need to identify the main stens and fan these out from the bottom to allow the flowering shoots to develop.
My main concern is how to do this now the rose is more nature and difficult to bend/shape. Also, how do I get more growth towards the center of the rose rather than it all taking place at the edges?
Hope this makes sense and thanks for any suggestions in advance!