Big shoutout to Zak Parrish’s original UE4 blueprint tutorials on the official youtube channel, back in the 4.0 days! Without them, I would probably never have gotten into making UE4 games so quickly or competently. They started me down this path, and I’ll forever be grateful for it 
Also, Peter Newton’s BehaviorTree/AI tutorial taught me everything I needed to know to figure out the rest of it.