or join the forums held by huasing and various orgnizations.

quite hard to repeat thousands of words once and once again.

if possible, face to face talk is best.

basically, a good math base, a good ALtitude, and ask seniors and lectures whenever you do not understand SMARTLY , study hard, will help you get a good degree.

but this is the basis for all science or engineering related studies...

and do not assume you will go to IS or CS, have a good base in first year , after first year, decide which stream you want to go into.

for the first semester, (not first year), i guess you study all common essential modules, which are the same no matter what stream you want to go in.

in second semester, you may ask this question when you finish the first semester. depending on your results, your feeling about your study, your interests, etc.

do not worry, just try your best.

good luck