You seem like a smart person. Can’t you create new ways to have fun with new friends, as well as old? I am not sure how wise it is to give up the program at NYIT without at least giving it a shot. It seems far easier to transfer out if you really hate it, than to try and get into a BSDO program later on should you have regrets.
Basing your decision on friends isn’t the best way to ensure your future goals. You will make many new friends throughout your life, including ones at NYIT. I would stick with your plan for now. It should be fairly easy to transfer into Hofstra (as long as you maintain grades) if you really feel you made the wrong choice. Go to NYIT and take advantage of all the resources available for hard classes. There will almost certainly be tutoring, and you can attend study groups and professor office hours. They wouldn’t have admitted you if they didn’t think you could succeed.