If the above answers are no, then you may need to upgrade the image packaging of the store urgently.
Establish style
First of all, you are a self-operated store, and you are born with a lack of brand awareness. If you only attract students with low prices and force consumers to choose your products with promotions, over time, not only will your store become famous, but it will also impress these college students. "This is a small shop selling low-end milk tea." This kind of consumption experience is very bad. Although your target customers are a group of college students, with the current consumption upgrade, customers' consumption concepts and awareness are particularly strong. First, they still have doubts about what they can't see. Even if your product tastes good, you should instill your store, your operation process and your brand image into consumers. This is a process of building consumer trust.
Communication quality
Secondly, your product packaging should also have a sense of recognition and quality. Go online to find a good quality milk tea cup and print a logo or QR code. When your milk tea is delivered to customers, you output not only the taste of a cup of milk tea, but also the texture of the whole brand.
Finally, it's still a cliche "product taste", which doesn't need too many surprises, as long as it is stable and universally applicable to most people. You can add new products when you have time. The effect of new products is much better than doing activities. It depends on your own energy.