Honestly?
If you've got the funds, get in a car/on a plane with a few mates who are up for it and just go somewhere for a few weeks or a month or so, one last adventure. May never get the chance again.
I had the opportunity to go with some mates just after uni doing Route 66 and up and down California for about a month, just us lot in a car, staying at Motels and living off fast-food but something came up that prevented me going and I'll regret that forever.