I don't have any experience with extended release, and honestly since I'm in college my doctor grills me more and more every time I go in to renew the prescript

I don't have any experience with extended release, and honestly since I'm in college my doctor grills me more and more every time I go in to renew the prescription. I keep thinking I'm gonna go off of it and then I still need it and objectively that might look sketchy, since I some students sell their meds. I'm scared that if I bring up any other type that might look worse? Anyway, this thread has taught me more about extended release and I'll likely look into that when I start working after graduation.