We're starting with the back squat because that lift takes the most skill and energy to perform, so it's best to do it when you're fresh. Because the squat comes early in the workout, you should feel comfortable putting some real weight on the barbell.
This trainer only works if you have the guts to make constant progress. That means if you got 10 reps with 225 pounds last week, then try to get 12 with 225 or 230 today. If you continue to use the same weight for the same amount of reps, you'll never see any growth and development. Do your best to get better every day.