OP, this is not the ultimate solution against future threats because of quantum computing, but you should read d5000's guide: Fees are low? Make your coins more private and (almost) quantum safe!.

I think that the author explains some very easy and good practices that can prevent you from unwanted surprises in the future and everyone should know. It is also available in more than 10 languages for better understanding of those who are not native English speakers here.