i am newb & want to know the best and safest way to keep collect btc .
thanks in advance
the best way is to keep it is offline. because online someone might steal it or hack it we don't know who but it is still a possibility. so writing it on a paper is good too.
the safest way to keep your wallet safe is by storing it offline, so your wallet is not easily hacked and your btc is safe. because if you save it online your computer will be easily randomized by hackersl