Help improving my Mario-style jumping setup

Okay, after watching the whole video tutorial and contemplating how to re-tool the whole setup, I think I’m more lost than I initially thought I was. I’m having trouble trying to figure out how to get the player’s Line Trace set up in a way that can then be called upon in enemy blueprints when contact is made.

I just simply don’t know what to do, I’m in way over my head with all Line Trace stuff and I am in a desperate need of aid.

Please help :(.