Welcome to The Philosophy Club! Come in, if you're sure you want to come in. It's all here, you know. But if you seek knowledge, you may learn things you wish you didn't know. If you seek community, you may learn that its' preferred groupings do not necessarily match yours. If you seek control, you may gain isolation. If you seek experience, you may go through things that will rip your life and your worldview apart. And if you seek happiness, you may find you no longer know what it means. If in fact you ever did.
You will find that you're launched along paths that lead through strange landscapes, that branch off and regroup in bewildering combinations, that there are no signs except the ones that you've tacked up, most of which have come down in the wind, and in any case are all too little, and too late. And even if you could go back and retrace your steps, you would no longer recognize where you started; you would no longer fit through the door, or indeed even see it if you happened nearby.
So then the only thing to do is continue on and try to make something of it as you go, try to tell interesting stories by the campfires at night, try to carve little objects or paint itinerate portraits or offer and trade advice with others. Put up some signs pointing to places you've been, although no one will be able to read the letters and in any case you're no longer sure of the direction. What you have is your (mutating) self, and the (mutating) journey. With no foundation, no reference, no guideposts except what you make up yourself. So listen to stories. Watch for signs. Stop at campfires. Run!