First, I don't know what kind of company Pfizer is, but the internship salary is too low, at least now it should be above 1500.
Second, I think you should put a straight attitude, don't think about fresh graduates and have no experience. The key is to gain a foothold in the company, or have connections, work hard and never give up. And supplement the corresponding professional knowledge.
Third, don't underestimate the internship. Internship is a platform for you to show your talents. Many graduates stay in the company through internships. Therefore, we must perform well and strive to show our excellent side in front of the company leaders. How come? That depends on what you are good at, for example, you can type fast. For example, you have a gift for singing? For example, you have a strong affinity and can do public relations?
Fourth, don't underestimate your ability.
Finally, good luck!
By the way, if I didn't call you, you can take the initiative to call and ask about the situation.