Baby shower

My sister wants to make me a baby shower and she wants know who and who are my friends. She want to give her my friends names because she want to know which friends are getting into her house. She strict and picky. I told her: your house is too mall to invite more people and not much space to park and I say if you want make it at my brother's house because it has more space and more space to park. But she sound like she do not want to. I got upset because I don't know if to invite my friends or just family members because her house is small. Do I choose what she want to or leave her do whatever she want for my baby shower with no friends? I feel like baby has luck because friends asked me about baby shower and the more you invite the more you get more gifts. I don't want to invite more people because of that if not just because my friends want to go too. Because we struggling economically that's why I says that my baby has luck, like a gift from God that is helping me not to struggle.