I hate my new pet..what can I do?

My mom got me a teddy bear hamster today and I don’t like it. I don’t know if was too soon after Sylvia (my opossum) died. It’ll be exactly one month on Monday since she died. I’m trying to give this stupid hamster a chance, but I don’t like it. I hate it. I want it gone..I don’t know what to do. I want my Sylvia! That was the one pet I honestly loved to pieces. My heart completely broke when she died and now I have this little shit of a hamster to take care of. What do I do? I want it out of this house and away from me. I honestly feel like screaming: “If it’s not my Sylvia, then get that little shit away from me.” :(