I'm going to refuse a sentimental gift
Why would you refuse a sentimental gift from someone?
I was miserable when I got it from her.
If someone goes to the trouble of giving you a gift, you're diminishing the joy of the gifter by refusing it. Instead, show your appreciation for the gift and allow them the joy of giving something you want.
It should never be an option for people to give me that kind of gift and the person can't tell me to appreciate it.
It is hard to buy gifts for people so when people do you should accept the gift. You can always give it away later or donate it.