You're going to handle it well, because your college experience was a crucible. Through it, you've become a far stronger, more resilient, and more capable person.
I can't wear my Guru Hat for this, because I've never stood where you stand right now... but I can extrapolate and generalize like a motherfucker. Right now is a good time to take all the things you've learned- all the parts of yourself that you've spent decades building and scrapping and rebuilding and refining- and play around with them, learning how to assemble them into different things. You can see if you have the parts to write short stories, or research numerical relationships, or review restaurants abroad, or whatever. Then, in seeing what you can build out of all these parts you've forged so far, you'll then get a better idea of the new parts you'll want to forge for yourself in the future, and the old parts you'll want to further refine.
I don't know if life really breaks up into neat chapters that are ever just Over. They bleed into one another. Life is this mutable thing, where we meander back and forth between times when we are learning and refining our skills, and times when we're experimenting and doing things with them. You're just wrapping up a particularly intense refining process. Now you get to see what you came out of it with.
It's a good time. A bit of a scary time, probably, but a good time.