Abrahamic religion didn't really became a major factor in the world until Constantine. So for instance for the entirety of Ancient Greece and the majority of Ancient Rome, Abrahamic religions had no meaningful influence, and there are extensive writings from this time. But while I think it's useful to consider their views, I again think the real goal is to develop one's own philosophy.
We all have different perspectives on life. For instance many things that people all value like freedom and security, are mutually exclusive at extremes. In ancient times one could also see a wide array of philosophies that all sought a similar end of 'happiness' or contentedness, yet they took radically different perspectives on the way to achieve such - e.g. stoicism vs epicureanism.
But these are issues that many people simply never stop to even consider what they think about, and so they drift somewhat aimlessly which I think is going to make it very difficult to find contentedness and direction in life.
I think it's fair to say that "Abrahamic Religion" here means specifically "Christianity and Islam". Judaism arguably encourages exactly the sort of philosophy you're talking about, and other Abrahamic offshoots like Druze are not influential.
That said I'm not actually fully convinced that Christianity and Islam discourage personal philosophy in the way that you say. The Greek philosophies you mention were largely the playground of the Greek elite, and plenty of parallels exist in the Middle Ages and beyond. I don't know that personal philosophical enlightenment from a random subsistence farmer is any different between the two eras.
Fair point, though I'm not entirely sure the shape that Judaism took in its relatively early days. But one thing I'd say is that the same remains true to this day. The people suffering for lack of meaning and direction, and casting aside religion, are not the people working the fields. Such work provides a sort of meaning and comfort all its own, as the work is inherently virtuous. It's people with relatively leisurely and highly compensated but completely meaningless and unnecessary (and even socially detrimental) work, that are left to search for meaning in it all.
We all have different perspectives on life. For instance many things that people all value like freedom and security, are mutually exclusive at extremes. In ancient times one could also see a wide array of philosophies that all sought a similar end of 'happiness' or contentedness, yet they took radically different perspectives on the way to achieve such - e.g. stoicism vs epicureanism.
But these are issues that many people simply never stop to even consider what they think about, and so they drift somewhat aimlessly which I think is going to make it very difficult to find contentedness and direction in life.