Important Transfer Question

Hello! I was thinking of transferring from New Paltz to Stony Brook for Fall 2016. I applied to SBU my senior year and was denied, so I really wanna get in for this next year. In high school, I graduated 21st in my class, but my SATs were weak, achieving a score of 1610, 1070 combined score. However, this past semester I got a 3.5 gpa in college, and have a total of 20 credits, counting APs. Should i even bother applying or should i wait? HELPPPP