I suggest creating a weekly schedule, and set out at least 45
minutes every day (or every other day) to study. That’s what helped
me get my doctorate in medicine. (But do remember that things may
go into different directions, one example would be how I majored in
medicine and minored in bar tending and now I’m the sole owner and
employee at my bar instead of being a doctor)
Going to echo what Finhawk said earlier; do not aim for an amazing
grade in every class, especially ones that do not pertain to your
interests. For myself, I aim for at least a 90% in all classes of
interest, and 80% for all others. Not setting the expectations too
high actually helps me achieve grades even higher than these,
because I’m not putting an enormous amount of pressure on grades.
It might sound counterintuitive, but I believe a great way to be
successful is to be chill about it. Being too high-strung about it
creates multiple opportunities to crash down under pressure.
Another thing I’ll say is no matter your level of interest in a
class, the teacher makes or breaks it. Be strategic in that. Talk
to other students about the teachers, do some googling, get a sense
of what people think of them. Keep watch on how many sections of a
class is generally offered and how many different teachers usually
are teaching them, especially by looking at the past few years of
class offerings. To my knowledge, every college has this history
recorded somewhere that’s publicly available. If you land in a
class where a teacher just isn’t great for you, you can then use
the your knowledge of the history of class offerings ot determine
if there’s a better teacher out there who will likely teach the
class, allowing an opportunity for you to try the class again
later.