Hello,

First thing is to be well acquainted with UPSC syllbus, this is important in order to know what to read and what to skip, reading newspaper on a daily basis is the best way to cover current affairs, The Hindu or The Indian Express are good options regarding this, the reason I told you to learn the syllabus is because here it comes handy, you don't have to read the entire newspaper, just stick to the syllabus portion, and making notes can be done in both ways, you can do that in register or loose sheets, or digitally there are various apps available for this, now the thing is for instance if a issue is ongoing or very prevalent and each days new things are coming up it can be anything related to government plans or for that matter any ongoing legal cases, the problem here is you don't know how long these will continue ,hence once you write something in a register,you have to leave some pages for the next information that will come up again, whereas if you make notes on loose sheets, there won't be much problem, you can at anytime add something to it, and doing digitally is of course a great thing, you can create topics and sub topics,and that's how entire thing is done, this same can be apply in hand notes as well.

There are various sites such as "Vision IAS" which offers monthly current affairs, you should go through these ,they cover each topics whether it's social, economics, technology etc in detailed manner, "Insights" too offer question on daily basis for practice, these are some of the sites you can refer and you can also use Pratiyogita Darpan, this magazine is really good covering every aspect, but one thing is very important no matter what site, magazine or anything else you refer, newspaper reading is must as this is the only way to cover even minute details which these sites or magazines may miss out.