OK:
You have a MULTI line trace there. That returns an array. If you had a ‘line trace by channel’, then you could break the hit, but…
I didn’t use line trace in my example, so you can leave that out 
To get a list ( array of a variable type ), just change it here
then you can put more than one in.
Code problems: Notice on that play node, the pin says ‘sequence player’, not timeline.
Remember my first bit of advice ( about 15 pages back )? Always make your nodes by dragging. So, drag from the timeline variable, and search for ‘set play rate’ 
‘New track 0’: you can just change the name in the timeline, doesn’t really matter.
This should go here
( timeline controls alpha ).
For this:
I’m assuming your ‘target’ is the stick, which is a mesh in your blueprint? In that case ( again ), just drag from ‘target’ and search for ‘relative location’. Like I say, this part only controls the bobbing of the stick.
All your other problems will go away, once you make that array