Hey @Mr_AKIMBO!
You can store these things on the character themselves instead of on the behavior tree- it’s better to do that anyway, for extended purposes it’s just a better storage place for variables. I see this is named “Edmon_BT” so I assume this is being used for one character- that means getting the AI Controller, then the Controlled Pawn, Cast to Edmon_BP, get value.
Instead, though, you can send the value to the Blackboard using “Set BlackBoard Value as ___” on the character, by getting the AI controller and using Get Blackboard. Then you only change the values as they change on the character instead of it being a constant monitor, and so you only need the decorators instead of 4 services. 
Hope that helps!