I am a first year PhD student in Mathematics at a US university but I cannot adopt myself to the environment of my current program. I feel this program is not right for me. Unfortunately, I have to stay in this university for at least one more year because the deadlines of application for most of the universities I want to apply to are already over.
Is it possible to quit the program after one year if I have good standing and possibly ask for a recommendation from the professor whom I have classes with?