You have great EC’s. It is curious that you attend one of the top 50 STEM schools in the country and you are clearly oriented towards the STEM subjects based on your EC’s, but your regents test scores in math and science are not exactly stellar. I don’t think the scores themselves matter for your college applications, but I don’t understand why that would be. Are these scores consistent with your overall grades in the classes. I think Cornell, JHU, etc would be a reach with your SAT math scores, particularly for engineering. I would suggest expanding your list. I think you can have a very successful application if you apply to appropriate schools.
Study hard for the SAT2 in Math and your ACT’s. Practice, practice, practice. The ACT is a race against the clock, more so than the SAT. Best of luck to you.