How often do you replace pencil tip?

Im a licensing class for a nuclear power plant... taking a cubic crap ton of notes... class is like 3 weeks in and I found myself getting some responsiveness issues with the pencil... so I swapped tips and all good...

My question is this... how often do yall change tips and do you have any suggestions to extend the life of the tip? Thanks!

Im a licensing class for a nuclear power plant... taking a cubic crap ton of notes... class is like 3 weeks in and I found myself getting some responsiveness issues with the pencil... so I swapped tips and all good...

My question is this... how often do yall change tips and do you have any suggestions to extend the life of the tip? Thanks!