One's philosophy can be a variety of things, and perhaps before one decides to write it all down one should have an idea of which kind one intends, or of course maybe all of them, a bit of a challenge.

There is the problem of how to be happy.  Then there is the problem of what it means to be and how to be good.  These aren't necessarily the same.  I dare say there exist rather happy but either evil or at least amoral people.

Then there are philosophies of work, of beauty (music, art, literature, poetry, love, food, and whatever we do), as well as the theory or philosophy behind politics and economics and history and law and so on, often tempered by ideas about justice and progress and alleviation of suffering.

Then there are more "analysis" things, such as what is it to know something, how to know something, how to understand something, on what grounds if any to believe, what is science and how to do it, what is sentience and emotion and experience and living, and of course why we die and what happens then if anything.

Finally, it is always useful when one thinks one has a great new insight into some issue to check the literature (mainly the great philosophers of history) to be sure it hasn't already been thought of and either refuted or at least debated.  There is no point going to great mental effort re-inventing the wheel.  I find reading philosophy (mostly commentary or description of the great ones, who tend to be hard to follow and at a minimum need annotation) a considerable joy, as so often I am either forced to abandon some notion or at least modify it, or realize that it is nowhere near the final answer I had thought.

I haven't mentioned God or deities, frankly because they are not relevant and just confuse matters.