So, how do we get to scientific beliefs from common sense? The answer is to see science as bootstrapping upon common sense. There is enough truth tracking going on in common sense for us to start revising our beliefs and observations without prior theory . Science takes the objects of experience as explicanda, things that stand in need of explanation. Our Umwelt itself stands in need of explanation – why is our sensory world useful enough to help us survive and reproduce? The answer is given above, a sketch of a scientific view.
In the end, beliefs that track truth come in degrees of validity and accuracy. It is not all-or-nothing, and so long as we do not die before reproducing our kind, that may be good enough for government work.