Preston high school??Townsend Harris?? Bronx Science?

I'm really really confused right now. I got accepted at Townsend Harris and I got a full scholarship to Preston High School, but I'm still waiting on my results for the SHSAT to see if I got in BxSci. If I did get in then I'm going there no doubt. But if I don't then I want to go to Townsend Harris, but my mom wants to send me to Preston cause I got a full scholarship. I live about 40 minutes at most away from Preston and about an hour from TH. The problem is that by the the next two weeks, I'm gonna have to decide whether I want to secure a place at Preston, and my mom said that I have to go there because she doest want to pay the money and not have me go. Plus she doest want me to go to TH because it's a little further away. I don't want her to secure a place at Preston but she keeps insisting. And then if I get in BxSci all that money will go to waste :( help....? :(