Do i sound spoiled please answer?

I never ask for much. i always offer to help my family with things and they always say "No you don't need to". i always have trouble figuring out what i want for my birthday and Christmas. When i say i don't want anything they give me loads of stuff anyway and it makes me feel guilty even though i didn't ask for it. Last year for Christmas all i wanted was a rugrats DVD and a box of peanut brittle. And yet they give me loads of video games, movies, books and presents and load my stocking up even though i said they didn't have to. I felt guilty for some reason. I also feel guilty when i offer to help make my birthday cake and they say "You don't help make your own birthday cake" Last Easter i said i just wanted some candy and they give me a huge basket with not only candy but cds and stuff! ugghh it's so annoying Oh and my family's kinda poor and i feel guilty that they're spending all this money on us kids me a 13 year old boy, my aunt an 18 year old girl, and ,my little sister a 7 year old girl.