I love to plan, but I don’t follow through.

I feel disorganized and flustered when I don’t have a plan in place, so I love planning. The thing is I don’t follow through.
I want to quit drinking for 10wks. Yet I also know I will have drinks tonight.
I want to lose 30pds, I put a diet in place, and then eat off-plan.

I have been playing this sad game with myself for 25yrs. I’m not sure how to tackle this.