This can also be difficult to achieve since the news that you have made a conscious effort to avoid listening to or follow may also headlined (posted) here in the forum or shared amongst friends and it will definitely arouse your attention.

 If you decide long term investment in crypto, have a strong resolve to hodl regardless of whatever you hear. Having such a resolve prepares you to accept the possibility of  any sort of news, but hinges you to the resolve that you have made to hodl regardless.