A Bit of both is much more safe because day trading can be very lucrative if you have a decent amount of money to invest in it ( not considering crypto leverage trading )and MOST IMPORTANT, you know what you are doing which comes from practice, Also you can diversify your investments through doing a deep research on coins/tokens with "Great Expectations" that convince You not the person that writes the article about that coin/token.
Its all about deciding your target ... Speculation,Hedging.......etc