You are looking 2 years out and things change.
However from what I have seen most beneficiaries do not interview in Warsaw, mainly due to the difficulty getting there.
You can reapply, there is no limit on the number of B applications you can make.
With that history whether it is worth the time and money is for you to decide.
Well that also makes more sense, 15 years not 10 years.
So Joint Sponsors would be the way to go, otherwise focus on those with children who might age out first.