So, I started again from scratch this season and have now got 12 from 0 at the start, which is 100% of tickets available (everything bar cat As)
Just to give hope that it can be done. Of course you need a lot of luck, but also a lot of perseverance (and probably a job where you are sat at a computer all day)
I just need to repeat that next season, plus get at least one Cat A and I'm in the guaranteed club within 2 years.