2 questions please

You have to plan, is that correct that "to plan" here means to plan goals? Although I admit it sounds strange. I will add the video maybe that might help to understand better. (video at 4:13)

Which you've already done - I understand that the preacher tell the people in the audience they already applied discipline, correct? otherwise I have no clue to what this sentence might reffer to.

In order to achieve your goals, you must apply discipline, which you've already done and consistency every day not just on Tuesday and miss a few days you have to work at it Every day you have to plan Every day