What training materials I am using at present? And can I recommend them?
At present, I am working my way through the Steppenmethode Step 6 workbook and the three Yusupov orange books.
I can recommend them, because they provide a systematic coverage of most of what I need to know at my level.
But the training material which is good for you is the training material which exposes weaknesses in you. If you go through a book and think to yourself that you understand everything in that book, then you won’t have learned as much as a book which took you three or four attempts before you got what was being explained.
So what weaknesses in my game have my training materials found?
I am poor at positional play and poor at endgames that require exact calculation.
As an exercise, ask yourself ‘What weaknesses came to light while reading the last chess book I read?’
That will be an interesting exercise which should help you improve.