controlling parent

hi guys,

so, i am really struggling with pleasing my mom when it comes to college and applications. on one hand, i know that this is MY future and that i should make my decisions for myself, but on the other hand i want to continue to have a good relationship with her because we used to fight. a lot. the big problem is that she is trying to basically do it for me and is then getting frustrated when i tell her to back off. i am the only one of all of us to go to and apply to colleges, and have the best GPA and extracurriculars, so i understand that she's excited and just wants to help, but she's always been extremely overprotective. i didn't think this would be a problem as i got older, but it has gotten to the point where she is asking people to get into contact with me about colleges and inviting basically strangers over without my permission to talk to me. she even scheduled the visit to my top choice college for me after i adamantly told her that i need to do it. because she actually has really good advice, and has been a great help, but has also been coaching me on how to apply for my whole life, i know what to do, but sometimes i do need help and so i told her i would ask when i need it but she didn't like that at ALL.

basically, if anyone else is also having or had this problem, what should i do to where i am still in control of my own future but won't completely destroy my relationship with my mom?