Can modafinil really help with staying focused to study? I have managed my ADHD well in the past but failing to manage well now. I'm doing PG and wants to go for a PhD, but now I have only 6 month left to complete my PG and am planning to take the GRE by Jan 2015. Is my decision to take the GRE now right, or should I focus on my studies and internship projects or manage time for both, as both are equally important?