I've always toyed with philosophy but never really got into it. I know the basic ideas of the basic schools but never got past the freshman intro course level. However, lately I've been doing some independent thinking about the meaning of human existence, I guess you could say. Much of my conclusions stem from my training as a student of the natural sciences (although I am also philosophically skeptical of the scientific method).
Basically I have come to the belief that there is no free will, that knowledge is impossible (although I think there is some "truth", but it is improbable that we will ever find it, and if we do we most certainly won't know that we have found it), and that human existence has no inherent meaning. Now a natural question is, how is a person like me, who believes these things supposed to go on about their lives? What is a person to do without resorting to nihilism? I'm sure that there are philosophers that have attempted to tackle this problem? Can anyone point me in the direction of some texts relevant to this question? Thanks!