Jumps-
Maybe pursue something more general to all events, skipping activities, hurdle jumps, hurdle runs, run-run-jumps, three step pops, before moving to specific technique.
Hurdles-
You may want to start with some basic exercises before launching into hurdling. Certainly learning to accelerate the first 8 steps first would be a good start.
Medball throws can have some general activities for throwing events- javelin especially.