I love my mom but I dont understand this. Please help!?

Hi first off I am 15 years old and don't get me wrong, I love my mom. I love her more than anything else because she is my hero and the strongest person I know and does so much for me. Lately though I have been feeling upset I guess because its summer because my mom never allows me to have friends over. I think in the past 4 years I have had friends over one time :/ I guess im upset with this because I have always wanted to have my friends over and see no reason why I can't. During the summer people see their friends everyday and I can't because I can never make plans. I want to be the one who makes plans and doesn't wait around for other people to ask me to do something. Whenever I bring the situation up my mom gets mad about it and just says "the house isn't the way I want it to be." I have gotten this response my whole life and im tired of it. Our house is beautiful and yes it has stuff in it but every house does and my friends aren't going to care at all. How can I convince my mom to let me have people over because I feel at 15 this is a ridiculous feeling and just isn't fair. Thanks in advance!