How to play animation when button pressed?

I already know about how to play animation but when I put 2 animations (Mace and Hand) to play together there is a problem now I cant able to play any animation at button pressed . when I press “use animation Asset” on menu (viewport) and on blueprint it begins to play properly both in game and viewport but I want it play only when I pressed left mouse button so I try to use “use animation blueprint” on both but it stopped playing even when I press left mouse button. my blueprint scripts are " Left mouse button (pressed) , Mesh, PlayAnimation, Delay(3.75), Completed Mesh, set animation mode .and sorry for explaing the blueprint scripts in writing but it is simple scripts hope you understand and thank you.