"shopping binge"（爆買い）

I was feeling stressed after a long week of work, so I decided to go on a shopping binge to treat myself. I went to the mall and bought a new outfit, a pair of shoes, a new phone case, and a few other things that I didn't really need. I felt better after my shopping spree, but I knew that I had spent too much money. I vowed to be more careful in the future, but I knew that it would be hard to resist the temptation of another shopping binge.

This sentence uses the phrase "shopping binge" to describe a situation in which someone buys a lot of things in a short period of time, but then regrets it later. In this case, the speaker is feeling stressed and needs to relax. They decide to go shopping to treat themselves. They buy a lot of things that they don't really need, and they end up spending too much money. They feel better after their shopping spree, but they know that they have made a mistake. They vow to be more careful in the future, but they know that it will be hard to resist the temptation of another shopping binge.