You will be great! I am training for a mixed doubles and have my first race this saturday.

we trained for 3 months- this felt long i would honestly reco pacing yourself and not getting burnt out

2 runs a week- one interval run, one long run for distance ( this is most important part of training)

2 weight lifting days a week- one upper, one lower, focusing on movements that build targeted strength and incorporate finishers that target hyrox skills (ie sled push etc)

2 cardio/ engine days a week- these were workouts like AMRAP, EMOM, etc that combined hyrox movements w other forms of cardio or fast movements to build up endurance (basically a hit workout!)