Despite what popular media, internet circles, and those in positions of authority try to tell you - YOU matter.
Materialism prioritizes physicality.
It claims all that matters is matter.
This is backwards.
All that matters is YOU.
More specifically, all that matters is YOU and what YOU DO.
What you do matters.
Some people (nihilists) will try to convince you that your actions are trivial and fruitless.
This is only true if you believe them.
They believe it, so they act it out.
People like this claim to not have any beliefs.
They're the most belief-driven people you'll ever meet.
Leaning against group consensus is a fool's errand.
Take the raw data and trust yourself.