After it's all said and done, it's up to us to decide who it is we want to be. Are we the sort to burn it all down and walk away, or are we looking to build something incredible? What walls do we erect and how do we go about doing so? Each of these considerations become a part of the identity we create for ourselves; each becomes a puzzle piece in the making of who we intend to be.
They're a part of both who we are, who we're becoming, and they contribute a greater understanding of ourselves along the way.
There's a funny kind of difficulty to be found in this process too, as there's not a one-size-fits-all codification or guide. Some will find and cling to religion, others will find some manner of organization or group to define themselves, but ultimately these are social agreements we keep. They're a part of who we become, but not who we are or who we are becoming in totality, so its on us to discover what is and is not right for us.
That's a process of trial & error, and it can lead one into some dark places along the way. When it does, consider how you want to become who you intend to be. Contemplate what each decision adds to this new version of you and keep an awareness of what you're looking to be.
It's difficult work, but its rewarding work! While it might seem to be a really lonely road, it doesn't have to be. There are avenues of aid available to you if you should require them, and the world is full of seekers just trying to ascertain where they fit. When the world is populated with folks trying to meaningfully engage with this process, there's no shame in asking for help when piecing Humpty Dumpty together again. ;)
Just be sure to be true to yourself and what you want to be as you do this. Then, you'll have no regrets when you find yourself again.