In fact, the tendency for one purchase to lead to another one has a name: the Diderot Effect. The Diderot Effect states that obtaining a new possession often creates a spiral of consumption
As a general rule, the more immediate pleasure you get from an action, the more strongly you should question whether it aligns with your long-term goals.
It’s hard to change your habits if you never change the underlying beliefs that led to your past behavior. You have a new goal and a new plan, but you haven’t changed who you are.