You will manage. Once you see the light, you can not unsee it again.
Just see how i use chains of events that work on the previous picked items, until that one item is left as a seed for the actions.
You created there a perfect puzzle to learn from.
And i would like the def cpax of this, if thats ok.
Again, i am sure that you will manage, because if you have that 'click' it 'clicked' for ever.