You can communicate with your roommate and explain the reasons for your shopping choice. Tell them about your financial situation and tell them that you pay more attention to cost-effectiveness and practicality when shopping. Let them know your consumption concept and hope they can understand and support you.
You can ask your roommate for some tips on saving money when shopping. After all, just because things are cheap doesn't mean the quality is not good. Sometimes you just need to spend more time and energy looking for quality goods. Or ask your roommate for some discount information, such as discounts, promotions and so on.
You can also try shopping with your roommates and make full use of group buying or discount activities. This will not only save money, but also enhance mutual communication and assistance.
If your roommate still can't accept your shopping habits, you should stick to your choice. Everyone has his own values and consumption concepts, and there is no need to change himself to meet the expectations of others. It is important to be true and firm and believe that your shopping decision is wise.
As a female college student, it is normal to buy things cheaply. You can respond to their criticism by communicating with your roommates, learning shopping tips to save money and shopping with them. The most important thing is to be true and firm, to believe in your choice, and not to change it to cater to others.